I have a spreadsheet with the following car sales:

Dept A Dept A Dept A Dept B Dept B Dept B
Jan Feb Mar Jan Feb Mar
Audi 550 230 650 85 320 300
Chev 350 260 780 800 250 254
Buick 420 312 240 87 99 187

How do I use match and sum the sales for each car and each departments using
the months?

Thanks,