MarginKoala
MarginKoalaStock & Inventory calculators

Am I buying too much stock?

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

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Searching only this Stock & Inventory catalogue.8 calculators
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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