Hi!
Is it possible to do math operations using values displayed in Indicator widgets?
I've thought about trying to do it using data expressions but I don't even know how to start, because all examples I've found so far only showed how to handle data from feature layers, not widgets.
I've set the Indicators to retrieve data from a table which every record represents the sales from each month for each polygon.

The user should select the months to be compared at the side panel and select a polygon at the map to filter the data.
What I want to do is just simple math operations like display the difference between the two time spans.

Thx!