The easier way to do this would be to make your actual nuts and bolts budget vision on paper and figure out how to make it work in airtable, rather than figure it all out in one pass. Here’s an example of one I did for a budget that has a section for...

Oh, I was thinking you were trying to do this in an automated way. If you have the data in excel or google sheets you can just copy and paste whole cell ranges.

This is what the Count field is for

If you have a datetime field, you can have another field display the month of the datetime with Month([datetime])

Agreed. The question depends on whether or not it is a binomial equation, I think. There is no single variable equation for which you cannot isolate the variable. This is not so much an Airtable question as it is a math homework question. Airtabl...