Snasui Excel Forum

Hi dear,
I need your help to sum value upon last number in a column for example
1
2
3
4 sum
1
2
3
4
5
6
7
8 sum
1
2
3 sum
1
2
3
4
5 sum

Thanks

It should be this formula.

F2 =IF(A3<A2,SUM(C$2:C2)-SUM(F$1:F1),"") Enter and copy down.

Thank it works