Churn rate can be calculated as (users at beginning of period - users at end of period) / users at the beginning of period.
Churn can be categorized into voluntary churn and involuntary churn, with involuntary churn being caused by payment failures.
Involuntary churn represents approximately 25% of overall churn.
To prevent payment failure churn, businesses need to focus on understanding the primary drivers of involuntary churn and implementing strategies to reduce payment failures at each stage of the user journey.