Enter the total customer defections and the total customers into the Calculator. The calculator will evaluate the Customer Defection Rate. 

Customer Defection Rate Formula

CDR = CD / C * 100


  • CDR is the Customer Defection Rate (%)
  • CD is the total customer defections
  • C is the total customers

To calculate the Customer Defection Rate, divide the total customer defections by the total number of customers, then multiply by 100.

How to Calculate Customer Defection Rate?

The following steps outline how to calculate the Customer Defection Rate.

  1. First, determine the total customer defections. 
  2. Next, determine the total customers. 
  3. Next, gather the formula from above = CDR = CD / C * 100.
  4. Finally, calculate the Customer Defection Rate.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total customer defections = 50

total customers = 750