Churn, or attrition, refers to losing customers, subscribers, consumers. This is measured through a metric called the churn rate. The method for calculating this is quite simple:
(Number of churned customers over the period) X 100
[(Number of new customers over the period)
+ (Number of customers at the end of the period) / 2]
Now that we know what churn is, let’s see how you can implement an anti-churn strategy.