Any Help Is Appreciated

Hi Stephen,

you can use SUMIFS function. An example in cell L5 would be '=SUMIFS($C$9:$C$76,$G$9:$G$76,J5)'. Please note that I have removed call merge from the 'Design Criteria' and 'Selection Data' headers and replaced it with 'Centre Accross Selection' (Format Cells ->Alignment->Horizontal). This is better, because it allows to select columns as desired (e.g. '# of Cond" and 'Condenser Model') and avoids confusion in formulas when selecting ranges.

Please see the updated file attached.

If you find my answer userful and like it, I would appreciate you clicking the 'Like' button :)

Thank you

Yury