How do you calculate customer churn?
A. by dividing the number of customers gained by customers lost
B. by multiplying the numbers of customers gained by customers lost
C. by subtracting the number of customers gained by customers lost
D. by adding together the number of customers gained by customers lost
C. by subtracting the number of customers gained by customers lost
The formula for calculating customer churn is: (Number of customers at the beginning of the period - Number of customers at the end of the period) / Number of customers at the beginning of the period. This will give you the percentage of customers lost during that period.