Measure how many massage practice clients returned during a chosen period and estimate the revenue represented by retained visits. The calculation distinguishes eligible starting clients from new clients acquired later, which keeps the retention rate interpretable. Use the forecast as a planning aid, not a promise of future bookings.
The main result is cohort retention: the share of starting clients still active at period end after removing clients who were newly acquired. It is most useful when the period and active-client definition stay consistent.
This operational estimate assumes the client counts refer to the same service line and period. It does not identify why clients returned or left.
With 140 starting clients, 132 ending clients, and 27 new clients, retained clients equal 132 − 27. Divide that result by 140 to reproduce the default retention rate.
They were not part of the starting cohort, so subtracting them isolates clients who could actually be retained.
No. If that happens, the cohort counts or the definition of an active client are inconsistent.
Use a period that matches the normal rebooking cycle and compare only equal-length periods.
Not necessarily. This calculator counts an active ending client once; define active status consistently.
No. It is a simple period-based projection and does not model churn, discounts, costs, or changing visit frequency.
| Variable | Meaning | Unit |
|---|---|---|
| Starting clients | Clients eligible to return | clients |
| Ending clients | All active clients at period end | clients |
| New clients | First-time clients added during period | clients |
| Average ticket | Revenue per completed retained visit | USD/visit |