BAZ Loyalty Engine
Churn / Retention / Lifespan
Churn % = lost ÷ beginning. Retention = 100 − churn. Lifespan = 100 ÷ monthly churn. Retention is the cheapest growth lever you own.
Your numbers
Your result — computed live
Churn
5.00%
- Retention
- 95.00%
- Est. lifespan
- 20 mo
5.00% churn — healthy. Defend it.
Churn = Lost ÷ Beginning · Retention = 100 − Churn · Lifespan = 100 ÷ Monthly Churn %
The canon
Retention is the cheapest growth lever you own — a point of churn compounds for years.
The benchmark
<5% monthly is healthy for most SaaS; the Patrick Number says retention is the cheapest lever.
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This calculator runs the BAZ Loyalty Engine — the same algorithm BAZ runs for paying clients.