I'm looking for a clean(er) way (than using SUMIF with a third row) to calculate the sum of the results from, say, a VLOOKUP that checks both the first and the second row for matching criterion.
So, given the Transaction spreadsheet, I'd like to generate the data in the Report spreadsheet - ignoring for the moment how I determine which client/account combinations are relevant in the Report spreadsheet - by adding up the values in Transactions which have the given client and account.
Transactions
CLIENT         | ACCOUNT        | VALUE
---------------|----------------|----------------
001            | 001            |  25.00
001            | 001            |   5.00
001            | 002            |  10.00
002            | 002            |  23.00
002            | 002            |   6.00
003            | 001            |   5.00
003            | 001            |   1.25
003            | 001            | 204.00
003            | 003            |  14.00
Report
CLIENT         | ACCOUNT        | TOTAL
---------------|----------------|----------------
001            | 001            |  30.00
001            | 002            |  10.00
002            | 002            |  29.00
003            | 001            | 210.25
003            | 003            |  14.00