MarginKoala
MarginKoalaFree business calculators

Get the number you need before you make the call.

Pricing a product, running a sale, checking an ad, hiring someone or watching cash? Pick the question that sounds like yours and put in your real numbers.

Pricing & Profit

What should I charge?

Margin, markup, gross profit and break-even — the numbers that decide whether your price leaves room on the table.

Pricing & ProfitStart here

What does my "%" really mean?

Markup vs Profit Margin

Finance term: Markup and gross margin

Enter the percentage you know and see the matching percentage on the other side, so you do not price from the wrong number.

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Pricing & ProfitStart here

How much of each sale is left after product costs?

Profit Left After Product Costs

Finance term: Gross profit margin / GP%

See how much money is left after the cost of the products you sold, in dollars and as a share of sales.

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Pricing & ProfitStart here

How many units do I need to sell to cover my fixed costs?

Sales Needed to Cover Fixed Costs

Finance term: Break-even units

See how many units you need to sell before the fixed costs you entered are covered at your current price and per-sale cost.

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Pricing & ProfitStart here

What should I charge?

What Should I Charge?

Finance term: Target selling price / target margin

Enter your cost, fees and the margin you want to keep. Koala works backwards to the selling price needed to get there.

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Pricing & ProfitStart here

What's the lowest price I can sell for?

Lowest Price That Still Works

Finance term: Minimum profitable price / floor price

See the lowest selling price that still leaves the margin you chose after product cost and the fees you entered.

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Pricing & ProfitStart here

What's the most I can pay for this product?

Most You Can Pay for the Product

Finance term: Maximum product cost / cost ceiling

Start with the selling price and margin you want, then see the highest product cost the numbers can support.

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Pricing & Profit

How much money does each sale leave after direct costs?

Money Left From Each Sale

Finance term: Contribution margin

See what each sale leaves after the product cost and other costs that happen with that sale — money that can then cover wages and other costs.

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Pricing & Profit

My costs went up. What should I charge now?

What Should I Charge After Costs Go Up?

Finance term: Cost increase repricing / margin preservation

Enter the old and new product cost to see the price needed to keep the same margin, plus what happens if you leave the price unchanged.

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Pricing & Profit

What should my wholesale/retail price be?

Wholesale & Retail Price Ladder

Finance term: Wholesale / retail margin ladder

Build wholesale and retail prices sequentially from the costs, fees and margin targets you enter for each leg instead of assuming a generic markup.

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Pricing & Profit

What does a price change actually do to my profit?

Impact of a Price Increase

The upside ceiling of a price change at constant volume — and the practical advice to test before rolling out.

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Deals & Discounts

Should I run this promo?

Discounts, BOGO, bundles, coupons, free-shipping thresholds and clearance markdowns — the margin a promo quietly shaves.

Marketing & Ads

Are my ads actually working?

ROAS, CAC payback and the customer-lifetime math that separates ads that pay for themselves from the ones that drain the budget.

Marketing & AdsStart here

What do my ads leave after direct costs and ad spend?

What My Ads Leave After Direct Costs

Finance term: Advertising contribution / ad economics

Go past attributed sales and see what is left after the product-cost basis you enter and ad spend, before wages and other costs.

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Marketing & AdsStart here

How much attributed sales do my ads return for every $1 spent?

Sales Back From Ad Spend

Finance term: ROAS — Return on Ad Spend

See how many dollars of attributed sales you record for every dollar of ad spend. ROAS is a revenue-efficiency metric, not profit.

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Marketing & AdsStart here

What ROAS exactly covers ad spend on my contribution economics?

Break-Even Ad Return

Finance term: Break-even ROAS

See the mathematical ROAS where the pre-ad contribution economics you enter exactly cover ad spend, with an optional cushion you choose.

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Marketing & AdsStart here

What does a new customer cost me?

Cost to Win a New Customer

Finance term: CAC — Customer Acquisition Cost

Enter what you spent to win customers and how many genuinely new customers came from the same acquisition scope.

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Marketing & AdsStart here

What share of matched sessions convert?

Sessions That Convert

Finance term: Conversion rate

See what share of matched sessions become conversions using the same reporting definition and period.

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Marketing & AdsStart here

What does an average customer contribute over their buying pattern?

Customer Lifetime Contribution

Finance term: Customer Lifetime Value (LTV / CLV)

Calculate revenue and contribution LTV from the customer buying pattern and direct product-cost or margin basis you enter.

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Marketing & AdsStart here

How does customer contribution compare with acquisition cost?

Customer Value vs Cost to Win Them

Finance term: LTV:CAC

Compare contribution LTV with CAC on the same customer definition. The ratio is shown without applying a universal healthy or scaling threshold.

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Marketing & AdsStart here

Was this campaign actually worth it?

Marketing ROI

Finance term: Marketing ROI

Compare the campaign contribution basis entered with campaign cost to calculate ROI, without treating attributed revenue itself as profit.

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Marketing & Ads

What is the highest CAC my customer economics support?

Most You Can Spend to Win a Customer

Finance term: Maximum CAC

See the acquisition-cost ceiling supported by the customer contribution and profit/payback limits you choose. It is a ceiling, not a spending recommendation.

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Marketing & Ads

What does each lead or sale cost me?

Cost Per Lead or Acquisition

Finance term: CPL / CPA — Cost Per Lead / Acquisition

See what each lead and completed acquisition costs from one matched marketing funnel and spend figure.

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Marketing & Ads

What am I paying per click?

Cost Per Click

Finance term: CPC

See how much each recorded ad click costs from your total ad spend and click count.

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Marketing & Ads

What do I pay per 1,000 impressions?

Cost Per 1,000 Impressions

Finance term: CPM — Cost per 1,000 impressions

See what you pay for every 1,000 recorded ad impressions. Impressions are not unique people reached.

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Marketing & Ads

What is my recorded click-through rate?

Clicks Per Impression

Finance term: CTR — Click-Through Rate

Divide recorded click events by impressions for the same platform scope and period. Event-based click counts can exceed impressions on some reporting definitions.

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Marketing & Ads

How much traffic do I need to hit my goal?

How Much Traffic Do I Need?

Finance term: Traffic requirement / funnel maths

Start with the sales target, average order value and conversion rate you choose, then calculate the session volume implied by that scenario.

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Marketing & Ads

Did this email campaign actually make money?

Email Campaign Economics

Finance term: Email ROI

Model the sales and contribution implied by the email funnel rates you enter, then compare that with program cost.

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Marketing & Ads

Is this influencer deal worth it?

Influencer Deal ROI

Finance term: Influencer ROI

Compare attributed contribution with the deal and commission costs entered to calculate the return on that spend.

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Marketing & Ads

Can I afford this commission rate?

How Much Commission Can I Afford?

Finance term: Affiliate commission ceiling

See the mathematical commission ceiling left by the order economics you enter. Treat it as a boundary, not a recommended rate.

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Marketing & Ads

How much room is left for marketing in my current monthly sales?

Room for Marketing in Current Sales

Finance term: Marketing affordability ceiling

See the maximum room left for marketing inside the current monthly sales and cost envelope you enter. It is not a recommendation to spend the full amount.

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Online Store

Am I making money on each order?

Per-order profit, returns, shipping thresholds and the small per-sale costs that quietly compound against your margin.

Online StoreStart here

What is the economic impact of my returns?

Economic Impact of Returns

Finance term: Return economics / reverse logistics

Model the monthly economic impact of returned orders versus those same orders being kept, including product-cost recovery and return-specific costs.

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Online StoreStart here

How much do I make per order?

Money Left From Each Order

Finance term: Order contribution / order profit

See what one order leaves after the product, payment, marketplace, shipping and other per-order costs you entered.

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Online StoreStart here

How much checkout value is not converting?

Checkout Value That Does Not Convert

Finance term: Checkout abandonment

Compare checkouts started with completed orders, then optionally model a recovery rate you choose instead of assuming one.

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Online Store

How much does the average customer order spend?

Average Spend Per Order

Finance term: Average Order Value (AOV)

See how much an average customer order is worth from your total sales and order count.

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Online Store

What are payment fees costing me?

What Payment Fees Cost You

Finance term: Payment processing cost

See what card and payment-processing fees take from a matched sales and transaction cohort and what that works out to per transaction.

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Online Store

What is the marketplace taking?

What the Marketplace Is Taking

Finance term: Marketplace commission / fee load

Add the commissions, listing charges and fixed order fees that actually apply to see the cost for the marketplace activity entered.

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Online Store

How much is shipping hurting profit?

What Shipping Is Taking From Each Order

Finance term: Shipping margin impact

Compare what delivery costs you with what the customer pays, then see the monthly profit drag from the difference.

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Online Store

What does this product really cost landed?

What the Product Really Costs Landed

Finance term: Landed cost

Add the supplier cost and the freight, duty, customs, insurance, packaging and other landed costs that actually apply to the unit.

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Online Store

How much are returns costing me?

Cost of One Return

Finance term: Fully loaded return cost

See the economic impact of one return after return-specific costs, product-cost recovery and any fee you keep.

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Online Store

What's my checkout conversion?

How Many Checkouts Become Orders

Finance term: Checkout conversion rate

See what share of matched checkout sessions become paid orders for the same reporting scope and period.

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Online Store

What are my subscription unit economics?

Subscription Unit Economics

Finance term: Subscription contribution / LTV:CAC

Combine price, per-subscriber costs and churn to estimate contribution LTV, then add CAC if you want payback and acquisition economics.

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Online Store

What should my minimum order be?

Lowest Order Value That Still Works

Finance term: Minimum order value / order floor

See the mathematical order-value threshold implied by the dollar costs, percentage fees and margin target you enter.

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Online Store

How do I write a clean invoice or quote?

Invoice or Quote

Draft a clean invoice or quote from a few basics — line items, totals and notes, no accounting software required.

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Online Store

How do I tell customers the price is changing?

Price Increase Notice

Compose a customer-facing email announcing a planned price change — keep the relationship intact.

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Online Store

How do I nudge an unpaid invoice politely?

Payment Reminder

A friendly pre-due nudge email — the gentler step before escalating to a collections letter.

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Online Store

What should my refund & return policy say?

Refund & Return Policy

Generate a store return / refund policy from your window, conditions and refund-method inputs.

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Stock & Inventory

Am I buying too much stock?

Sell-through, carrying cost, reorder timing and the cash flow of holding inventory that has not moved yet.

Stock & InventoryStart here

How fast is my stock moving?

Sales vs Stock Received

Finance term: Sell-through rate

Compare units sold with units received in the same period. The result can exceed 100% when sales also draw on opening inventory.

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Stock & InventoryStart here

How quickly am I selling and replacing my stock?

How Fast Your Stock Turns

Finance term: Inventory turnover

Compare COGS with average inventory at cost to calculate annual turns and approximate days on hand.

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Stock & InventoryStart here

How much is my slow stock draining the business?

Economic Cost of Dead Stock

Finance term: Dead stock / liquidation economics

See the inventory cost basis plus carrying cost less the recovery value you expect to receive from the stock.

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Stock & Inventory

How many weeks will my stock last at this demand rate?

How Many Weeks Your Stock Will Last

Finance term: Weeks of stock cover

Divide current units on hand by average weekly demand. No universal good, low or overstock band is applied.

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Stock & Inventory

What does it cost to hold unsold stock?

What Holding Stock Costs

Finance term: Inventory carrying cost

Apply the carrying-cost rate you enter to average inventory value, rather than assuming a standard carrying percentage.

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Stock & Inventory

When should I reorder to avoid a stockout?

When Should I Reorder?

Finance term: Reorder point / safety stock

Use your average daily demand, supplier lead time and safety stock to calculate the reorder trigger. No lead time or safety stock is assumed.

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Stock & Inventory

What does an out-of-stock period cost me?

Stockout Loss Scenario

Finance term: Stockout contribution loss

Model the contribution lost during a stockout using the share of demand you expect to be genuinely lost rather than assuming every unavailable order disappears.

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Stock & Inventory

Should I sell singles or in bundles?

Bundle vs Units

Per-unit profit for singles vs bundles at the chosen take-rate — the right read for "should I kit this product?".

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Staff & Contractors

Can I afford to hire?

Hourly cost of an employee, payroll burden and the all-in price of headcount — the math before you put out the offer.

Staff & ContractorsStart here

What does one worked hour of staff actually cost?

True Cost of One Staff Hour

Finance term: Fully loaded hourly cost

See what one worked hour costs once wages and the employer costs you enter are spread across the working hours you specify.

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Staff & ContractorsStart here

Is a contractor cheaper than an employee?

Contractor or Employee Cost Comparison

Finance term: Fully loaded labour cost comparison

Compare the annual and hourly cost of the contractor option with the employee costs you actually expect to carry.

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Staff & ContractorsStart here

How many staff do I need to cover this workload?

Headcount From Workload

Finance term: Headcount capacity

Calculate the headcount implied by the workload, productive capacity and utilisation assumption you enter.

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Staff & Contractors

Is overtime cheaper than hiring?

Overtime vs Hire Cost

Finance term: Incremental labour cost comparison

Compare the entered weekly incremental cost of covering the same extra hours with overtime versus a new hire.

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Staff & Contractors

What should I charge as a freelancer?

Required Freelancer Charge Rate

Finance term: Billable / charge-out rate

Build the hourly rate required from your target annual compensation, business overhead, optional profit buffer and billable capacity.

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Staff & Contractors

How much of my team's paid time is actually productive?

Productive Hours vs Paid Hours

Finance term: Staff utilisation

Divide productive hours by paid hours for the same period. The calculator does not assign a universal good utilisation rate.

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Cash Flow & Funding

Can I afford this?

Runway, monthly burn, the cash on hand for a quiet quarter and the calendar date you would run out at this rate.

Cash Flow & FundingStart here

How long can I keep going at this burn rate?

How Long Your Cash Will Last

Finance term: Cash runway

See how many months current cash lasts if the average cash inflows and outflows you enter continue at the same rate.

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Cash Flow & FundingStart here

Am I burning cash or generating a monthly surplus?

Monthly Cash Burn or Surplus

Finance term: Monthly burn / burn rate

Compare monthly cash inflows with recurring and irregular cash outflows to see whether the period burns cash or produces a surplus.

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Cash Flow & FundingStart here

What revenue do I need to break even?

Break-Even Revenue

Monthly revenue at which contribution covers fixed costs — the per-month floor for any pricing strategy.

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Cash Flow & Funding

How long is cash tied up before I get paid?

How Long Your Cash Is Tied Up

Finance term: Cash Conversion Cycle (CCC)

Calculate DIO + DSO − DPO from the days you enter. A negative result can occur when supplier terms fund more of the cycle.

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Cash Flow & Funding

How much working capital do I have?

Short-Term Assets vs Liabilities

Finance term: Working capital

Subtract current liabilities from current assets and see the current ratio from the same balance-sheet scope.

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Cash Flow & Funding

How much do I need to raise?

Funding Need

The raise size that funds a runway horizon at the current monthly burn — sized against current cash on hand.

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Cash Flow & Funding

How long is my receivables book taking to collect?

A/R Aging

Bucket totals, % overdue and weighted-average age across 0–30 / 31–60 / 61–90 / 90+ days.

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Accounting Basics

What do my numbers mean?

COGS, gross margin, EBITDA and the few numbers a small operator should be able to read on the back of a napkin.

Accounting BasicsStart here

What is my GP rate?

Gross Profit Percentage (GP%)

Gross profit percentage from gross profit and sales — the quick GP ÷ sales × 100 check when you already have both figures.

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Accounting BasicsStart here

What percentage of sales is COGS?

COGS Percentage

COGS as a percentage of sales — the fast COGS ÷ revenue × 100 check for margin reviews and management reporting.

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Accounting Basics

What did the inventory I sold actually cost?

Cost of the Stock You Sold

Finance term: Cost of Goods Sold (COGS)

Work out the value of the stock that was actually sold during the period from opening stock, purchases and closing stock.

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Accounting Basics

What is my EBITDA from these add-backs?

EBITDA Bridge

Finance term: EBITDA

Start with net profit after tax and add back the interest, income tax, depreciation and amortisation already deducted in the same period.

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Accounting Basics

How much is left after COGS?

Money Left After Product Costs

Finance term: Gross profit / gross profit margin

Enter total sales and the cost of the products sold. Koala shows what is left before wages and other costs, plus the finance term underneath.

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Accounting Basics

How much am I actually keeping?

Net Profit

Net profit from gross profit, opex, interest, D&A and other — pre income tax. The headline "what is left" figure.

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Accounting Basics

Why do my cash and profit figures differ?

Cash vs Accrual

Reconcile accrual profit with operating cash via working-capital changes and D&A — the difference between profit and bank movement.

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Accounting Basics

What amount does this contract-progress scenario allocate?

Revenue Recognition

Recognised revenue = contract value × delivered fraction — the right balance for milestone-style contracts.

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Accounting Basics

When does the business turn profitable?

Break-Even Point

Months until cumulative monthly contribution covers the upfront fixed loss — the long-arc break-even line.

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Accounting Basics

How much of revenue goes to running costs?

Operating Expense Ratio

Operating expense ratio = operating expenses ÷ revenue — the slice of every dollar that goes to running the business.

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Accounting Basics

What percentage of sales goes to overhead?

Overhead Percentage

Overhead as a percentage of revenue — a simple overhead ÷ sales × 100 check for monthly cost control and budgeting.

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Accounting Basics

What percentage of sales do I actually keep?

Net Profit Margin

Net profit margin from net profit and revenue — the quick net profit ÷ sales × 100 check for the bottom-line rate.

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Growth & Performance

Is my business getting better?

Month-on-month deltas, baseline-vs-now readings and the tracking numbers that tell you whether the trendline is real.

Business Decisions

Is this worth the money?

The decision-frame calculators — break-even on the new product, payback on the new tool, opportunity cost of the new hire.