Client Retention Calculator — Retention Rate & Revenue Impact
Measure client retention rate and estimate the revenue impact of keeping more clients.
Clients who visited in the last period
Of those, how many came back
How We Calculate This
Calculates retention rate as a percentage and estimates the revenue impact of lost clients and potential improvement.
The formula
Retention rate = (Returning clients / Total clients) x 100
Lost revenue = Lost clients x Average spend x Visits per year
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always perform a strand test before chemical services.