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fin.customer-churn-revenue-impact Calculator
Calculates annual ARR lost to churn, effective ARR growth after churn, and customers lost from a starting ARR and churn rate. At 10% annual churn, a company must grow new ARR by 10% just to stay flat — gross ARR growth without net figures is always misleading.
Inputs
Arr
Total income generated before any costs are deducted. Profitability depends on how much survives after expenses.
Churn Rate Pct
Amount per unit of time or per unit quantity. Check the denominator before interpreting.
Cac
Reference formula or conversion factor shown for context.
Avg Customer Size Arr
Reference formula or conversion factor shown for context.
Results
annual ARR lost to churn
The result expressed on a per-year basis.
annual churn rate
The result expressed on a per-year basis.
customers lost per year
LOS (length of stay) -- the number of days from admission to discharge. A key hospital efficiency metric.
cost to re-acquire (CAC)
The total monetary cost computed for the given inputs.