To calculate the Customer Retention Rate, you can use the following formula: CRR = ((E - N) / S) * 100 Where:
E = Number of customers at the end of the period N = Number of new customers acquired during the period S = Number of customers at the start of the period
For example, if a company starts with 150 customers, ends with 180 customers, and acquires 50 new customers during the period, the retention rate would be: CRR = ((180 - 50) / 150) * 100 = 86.67%