Hi,
I have been using a sumproduct formula for some years, and although it works fine I was wondering if there was an alternative way of getting the same result.
In C8 copied down =SUMPRODUCT(($A8>=$A$3:$A$4)*1,($B8<=$B$3:$B$4)*1,($C$3:$C$4)) to show how many are in each hour
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