Request for Power Usage Monitoring Template by months

[caaron326]

Is your template request related to a problem? Please describe.
I need to keep track of monthly power usage from the digital power meter reading in kWH. However to do so, I'll need to use the reading on the last date of the month deducting the reading on the last date of the previous month.

Describe the solution you'd like
Is there a way to tabulate this monthly power readings?

Additional context
Add any other context or screenshots about the feature request here.