This is primarily used in the subscription model revenue. In which after signing up by the customer, the customers are required to pay certain amount every month on a subscription model. The percentage of consumers who become paying customers. This metric only includes customers who have converted into premium or paying account holders – not the number of users who signed up for the free trial or are using a freemium option. Calculated by dividing the number of registered users by the number of users who started paying over a given period.