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Am I growing year on year?

Enter your numbers below. Get the answer first, then Koala's next move.

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Numbers to enter
Use the same metric definition and comparable period this year and last year.
Koala's Calculated Result
(current period − same period last year) ÷ same period last year.

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The detailed explanation will appear here once the calculator has a result.

The prior-year comparison value must be above zero. The current period may be zero, which correctly produces −100%.

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Definition and method

What this calculator answers

Year-on-year growth % at the same period last year — strips seasonal swings from the MoM trend.

YoY growth

YoY growth = (this period − same period last year) ÷ same period last year × 100. The year-over-year read — better than MoM at stripping seasonal effects.

Worked example: your figures

The interactive result above is the worked example. Change any input and the same deterministic engine recomputes the answer; this page does not insert a generic example business or silently treat example values as a benchmark.

  • No market benchmark or outcome is silently inserted by this page.

What should I check next?

Frequently asked questions

What is year-on-year growth?

YoY growth = (this period − same period last year) ÷ same period last year × 100. The % change year-over-year — better than MoM at stripping seasonal effects from a single read.

Year-on-Year Growth

What's a healthy YoY rate?

There is no universal numeric benchmark for this decision. The right comparison depends on the industry, geography, business model, time period and exact metric definition. Use the business’s own history, economics and explicit target unless a verified benchmark matching that scope is available.

Year-on-Year Growth

How does YoY compare to CAGR?

YoY is the comparison of two specific periods; CAGR is a multi-year growth rate (compound read). Use YoY for a single-period read; CAGR for the multi-year trendline.

Year-on-Year Growth

When is YoY misleading?

When the prior period is a hard baseline year (think: post-Covid 2021 + 30% base effect). Look at a 2-year reading too — the one-year YoY can overestimate or understate without it.

Year-on-Year Growth

Educational use, not financial advice. Numbers are estimates for planning; consult a qualified professional before acting on them.