90 day rolling attendance point

I have seen a lot of formulas for a 12 month rolling attendance point system. can anyone help me with one that will add points and drop them in 90 days?

Column A: Date of occurance
Column B: Point value
Column C: Total accumulated points that drop at 90 days

I GREATLY appreciate any help with this.

Charles

Disregard this one, I figured it out without pulling out too much hair.
I created a cell that was today's date minus 90 days.
=SUMIF((A2:A100),">"&$G$2,($B$2:$B$100))

could you share your template?

Here ya go.

The cell that is today -90 is hidden in column G