30.00% is the example result. A percentage growth rate depends on the starting base. A small starting amount can produce a large rate even when the absolute change is modest.
Measure the change in MRR (monthly recurring revenue) between two observations. Keep one-time revenue outside both values.
Separating growth, retention and subscription capacity
A percentage growth rate depends on the starting base. A small starting amount can produce a large rate even when the absolute change is modest. Recurring revenue should be compared across the same starting cohort. Expansion, contraction and churn change retention in different directions. Adding new customers to a retained-customer calculation can conceal losses in the original population.
Source and result record
For saas growth rate, retain Starting MRR, Ending MRR together with the output. Record the date of the source values and the unit convention used in the form. That record separates a change in the underlying case from a change in how the information was entered. A saved result without its source values cannot show which assumption produced it.
Example with the supplied inputs
Starting MRR: 20000; Ending MRR: 26000. Result: 30.00%. The values are illustrative.
Compare one changed input
Starting MRR changes from 20000 to 22000. The result becomes 18.18%. All other inputs remain fixed.
Calculation rule
Result = (([Ending MRR] − [Starting MRR]) ÷ ([Starting MRR])) × 100
Inputs and output
| Input | Example value | Entry convention |
|---|---|---|
| Starting MRR | 20000 | Use the source quantity represented by starting mrr. Keep the counted population fixed and avoid mixing a unit value with a period total. |
| Ending MRR | 26000 | Use the source quantity represented by ending mrr. Keep the counted population fixed and avoid mixing a unit value with a period total. |
Output: 30.00% is the example result. A percentage growth rate depends on the starting base. A small starting amount can produce a large rate even when the absolute change is modest. Use the formula to distinguish a cash amount, count, percentage or ratio.
How to use the page
Collect the inputs
Gather Starting MRR, Ending MRR. Use one period and the units shown in the form.
Run the calculation
Enter the values and select the action. The calculation rule above explains how the inputs produce the result.
Compare a scenario
Change Starting MRR on its own, keeping the other inputs fixed. Read both results before changing another assumption.
Worked example
With the example inputs listed above, the result is 30.00%.
Change Starting MRR from 20000 to 22000 while keeping every other value fixed. The result becomes 18.18%. This comparison isolates that input; it does not forecast how other variables will respond.
Check the stated formula, units and limits before using the result in a decision.
Keep the displayed formula, input units and model scope with the result. Corrections or questions can be sent through the request section on this page.
Content updated: October 11, 2026