For your Reduce Churn automations you can see how they are performing by clicking the Stats button for each automation:
You'll see MRR Saved, which calculates your monthly recurring revenue that has been saved by users taking advantage of a Reduce Churn automation discount. This number will only include subscribers that are still subscribed, if they eventually do churn this number will decrease.
The Saved Subscribers number is a cumulative total of all subscribers who have taken advantage of a reduced churn offer, even if they have cancelled later.
You'll also find the a breakdown of Cancellation Reasons and a full list of cancelled subscribers below with the dates they cancelled on and the reasons they cancelled.