Sum based on dates
Hi there,
I have created a large spreadsheet and I was wondering if it was possible to create a formula where the value of a cell updates automatically based on the date.
To make it easier to understand, the spreadsheet calculates a score for fighters in MMA and I want to deduct a certain number for every month since their last fight. I.e an inactivity score.
So I have a date next to each fighter and I want a cell to automatically update the score based on the date.
I doubt this is even possible but I am desperate for some help and would appreciate some advice, even if it means considering different software.
I use Excel 2016.
Many thanks,

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