Calculate retention after excluding newly acquired customers.
Use the example inputs or enter your own values.
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Retention = (ending customers − new customers) / starting customers × 100. Counts must refer to the same period.
Enter customers at start, customers at end, new customers. Update the result, inspect it, then copy or download the output. Reset restores the example inputs so you can start a new calculation.
Example inputs: Customers at start: 200 · Customers at end: 230 · New customers: 50.
Use matching periods and consistent units. This is a planning calculation, not a forecast or a guarantee of sales.
The tool does not connect to your website, change your hosting or install anything in WordPress. Any output must be applied separately in the intended environment.
No. This tool works in a modern browser with JavaScript enabled. Your inputs are not submitted to a server by the tool.
Use Copy for the textual result or Download for a local file. Image tools download a generated image when one is available.
No. It produces a result for you to review. Production changes remain a separate step.
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