Customer churn rate calculator
Find the churn rate represented by customers lost compared with customers at start. The calculator divides the relevant part by the correct reference total.
customer churn rate calculator: Solve the reverse percentage from known values.
Customer churn rate calculator
How to calculate it
Divide customers lost by customers at start and multiply the quotient by 100. The total must represent the complete observed set.
- Insert the values in the formula, perform the division first, and round only the final answer.
- The answer says how many units out of every 100 the part represents. 100% equals the total; more than 100% means the part exceeds the reference.
Applied example
72 ÷ 1200 × 100 = 6%; Remaining = 1128 customers.
Divide customers lost by customers at start and multiply the quotient by 100. The total must represent the complete observed set. The answer says how many units out of every 100 the part represents. 100% equals the total; more than 100% means the part exceeds the reference.
Practical use
Measure the share of customers who cancel or leave.
For customer churn, use “customers at start” as the reference. It must represent the full set or the starting point of the comparison.
Checks that matter
- Use customers at the start as the base and define exactly what counts as churn.
- Do not swap the part and total; reversing them changes the meaning of the result.
- Keep full precision during the calculation and round only the final answer to match the accuracy of the source data.
Frequently asked questions
What is the correct reference value?
For customer churn, use “customers at start” as the reference. It must represent the full set or the starting point of the comparison.
Can the answer be greater than 100%?
Yes. This happens when the part exceeds the total or the final value is more than double the starting value.
How many decimal places should I use?
Keep full precision during the calculation and round only the final answer to match the accuracy of the source data.