优秀。 如何在新行中对每个组的某些条件求和？

Question

I have a raw data set right now that is set up in columns like so:

Group1  Cost 1  Amount
Group1  Cost 2  Amount
Group1  Cost 3  Amount
Group1  Cost 4  Amount
Group2  Cost 1  Amount
Group2  Cost 2  Amount
Group2  Cost 3  Amount
Group2  Cost 4  Amount
Group3  Cost 1  Amount
Group3  Cost 2  Amount

I want to (I'm guessing this requires a macro) sum the amounts for costs 2&3 on a new row for each group. The group & cost columns are just titles.Is this possible?

Ignore the first highlighted field. I kind of tried to show what I wanted to do, with two groups. I need to sum the light blue line items for each group. The groups being the 1111111 column. http://i.stack.imgur.com/D2vj3.png

Answer 1

I would put this in whatever cell you want the sum to be in and do =SUM(Cost2+Cost3). So for example lets say Group1 Cost2 is in C3 and Group1 Cost3 is in C4 the formula would be =SUM(C3+C4)

Answer 2

use this formula:

=SUMPRODUCT(N(A:A="Group1"),N(B:B="Cost 2"),C:C)+SUMPRODUCT(N(A:A="Group1"),N(B:B="Cost 3"),C:C)

But after entering the formula you should press ctrl-alt-enter not "enter" directly