Friendly reminder that churn rate isn't a meaningful metric, because churn probability is not constant throughout a customer lifetime: https://medium.com/swlh/youre-all-calculating-churn-rates-wr...

The churn rate will almost certainly go down on its own as your user base gets older, and consist more of long term customers. What you're usually looking for is to compute average customer lifetime, which is better done without assuming constant churn probability, see the linked post.