I'm using the following formula to look up and sum cost information for Brakes and Air System:
=SUMPRODUCT(($B$63:$B$102="Brakes & Air System")*($C$63:$N$102))
The formula works well, but I am charting year / year comparison and need to modify the formula to sum Jan through whatever month is listed in cell $C$2.
My month header row is 62.
My thought is that if I change cell $C$2 to Feb, the forumla will only sum the numbers listed in Jan & Feb for Brakes & Air System.
Thanks in advance.
=SUMPRODUCT(($B$63:$B$102="Brakes & Air System")*($C$63:$N$102))
The formula works well, but I am charting year / year comparison and need to modify the formula to sum Jan through whatever month is listed in cell $C$2.
My month header row is 62.
My thought is that if I change cell $C$2 to Feb, the forumla will only sum the numbers listed in Jan & Feb for Brakes & Air System.
Thanks in advance.