I have some data on app usage. I want to see the change in usage app month on month.
For example, users who login fewer times and also press a button in the app fewer times.
I've got as far as table calculation showing % difference from previous but this only represents one metric (i'd like to combine logins & button presses for example) and also I can only sort by one month's change when I'd really like to see the biggest losers/winners. What's a good way to do this?