Renewal Rate Calculation

Cwood121016

Hello!

I have my data set pulled in and I cannot figure out the best way to calculate the renewal rate or churn rate. The calculation is taking a specific timeframe now, say all of March 2022. Then taking that total paid about and then dividing that by the same time period last month. So looking at period over period, but as a calculation in beast mode. To show what the rate is for a current timeframe.

Please help!