Calculate the percentage of existing customers retained over time.
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Primary Result—
Secondary Result—
Total / Final Value—
Growth / Percentage—
| Step | Label | Value |
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What this result means
This result shows the VAT amount and the net or gross total depending on mode.
When to use this calculator
Use it for international billing, ecommerce, and invoice preparation.
Why it is useful
It helps avoid tax mistakes in pricing.
About this calculator
This result shows how well your business keeps existing customers.
When to use it
Use it alongside churn and CLV analysis.
Why it matters
It helps show customer loyalty and product-market fit.