KPI to compare first and last week

[DannyV]

I want to create a KPI to measure the difference in minutes or percentage between the first week and the last week of a date range of a field, is there a way to do this in a KPI? If not, what other suggestion could be applied?

I attach an example of how I would like to make this comparison

[Ramon_Lopez]

hi @DannyV

You could do some formulas like this:

Let me know if this does the trick.

thanks!
Ramon Lopez