1. Enter current MRR
Use recurring revenue active at the end of the current month.
2. Enter previous MRR
Use the same definition and currency for the prior month.
3. Review net new MRR
This is the absolute monthly change.
4. Check growth rate
The percentage change scales the movement relative to the prior month.
5. Use ARR carefully
The annualized figure is a run rate, not a booked-revenue forecast.