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Reference table

Customer Retention Rate Table: Retention rate by Customers at start

Reference table of retention rate for Customer Retention Rate across a range of customers at start values — exact, engine-computed figures you can read off at a glance.

By Priya Nair, MBA, Finance & Strategy · Updated Jun 2026 · 1 min read

This customer retention rate reference table shows the retention rate for a range of customers at start values, assuming a customers at end of 220 and a new customers gained of 40. Every figure is computed with the same engine that powers our Customer Retention Rate Calculator, so the numbers are exact.

Customers at startRetention rate
50360.00%
100180.00%
150120.00%
20090.00%
30060.00%
40045.00%
60030.00%
1,00018.00%
1,40012.86%
2,0009.00%

How to use this table

Find the row closest to your customers at start and read across to the retention rate. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Customer Retention Rate Calculator for a precise answer.

Need a value that is not in the table? — the Customer Retention Rate Calculator does it instantly, for free, with the formula and a worked example built in.

Continue exploring business calculators with these tools: Discount Calculator, Price Elasticity of Demand Calculator, Profit Margin Calculator, Gross Profit Calculator, ROI Calculator.

Calculators in this guide

Frequently asked questions

Each cell is computed with the standard formula using exact arithmetic — the same calculation behind our Customer Retention Rate Calculator — so every figure is accurate for the stated assumptions.

Yes. The table covers common customers at start values; for any exact figure, enter your own numbers in the Customer Retention Rate Calculator.

Priya Nair · MBA, Finance & Strategy

Priya Nair is a business analyst and MBA who advises small businesses and startups on pricing, unit economics and growth metrics.