Not sure of your requirement
but if first number is in A1 and second in B1 (with A1 always higher than B1)
Use this in C1
=A1-B1+1

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"James Dasher" wrote:

I want to be able to calculate the days between two "dates" however I need it
on a 30 day system. It doesn't run on a true calendar, but always on 30 days.
So essentially between two 1-30 sets I need the amount. I want to include the
first number.

So if I put down in the first cell "23" and the second cell say "8" I need
the total to be 16

Any suggestions?