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Take 3: Here's another idea... Create a pivot table of your data. Put AGENT in Row; WRAPUP in VALUES and WRAPUP in Report Filter ** This is where you can FILTER OUT the 0 values! (I had some issues in getting a Total, and for some odd reason when I changed the WRAPUP in Value on Pivot table to COUNT instead of SUM, I got the individual totals. NOTE: I also saw that there is: "E" and "E -" so when I subtotaled on A through H I didn't match the total of the total 482!
ok Take 2 ~ try entering the formula =SUMPRODUCT(SUBTOTAL(3,OFFSET($A$2:$A$483,ROW($A$2:$A$483)-MIN(ROW($A$2:$A$483)),,1)),--($A$2:$A$483="B")) in cell B490. Remember to hit Control & enter to 'Set' the sumProduct (it will/should have the curly brackets if done correctly)
Make sure your subtotal has all the parameters in it....I copied your data, placed in Excel, created a Filtered Column for your data, then hid the BLANK cells and had similar problem with Subtotal formula. However, if you make sure that there is a range you should get the desired results ~ Here was my formula =SUBTOTAL(9,A2:A30). Please give CREDIT if this has assisted you. Thank you