You need to calculate the sum for the day, and for the week on an Excel sheet. How to proceed to get the results to these calculation automatically in order to make statistics or projections for possible evolution in the future ?
You have tried the formula :
=IF(NO.WEEK(B2)=NO. WEEK(B3);"";SUM(C:C))
But it didn’t work. How to remedy it ?
The most simple is to get the formula from the A column on all the height and then use the formula on the second like to get the weekly total day by day.
=SUM.IF($A$2:A2;A2;$C$2:C2)
Warning, respect the $.
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