Wow, I'm going to have to spend some time figuring this out, and reading up on how to make more of these types of formulas! I added in to my workbook, and made a few changes to reflect the referances to the other pages, and it works great!
Thanks a bunch!
If I get stuck again, I may post more questions tonight.
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by: mikeopoloPosted on 2008-10-10 at 14:50:23ID: 22691052
Have a look at the attached file - using sumproduct formulae you can combine criteria. I have filled in one column for you.
Note that you cannot specify an entire column in this formula, hence the column ranges are set as L2:L65536. And note the use of --(....) which results in a range such as 1,0,1,0,0,1,1....., which gets summed.
The criteria ranges are added together using the * symbol.
Regards
Mike
Use sumproduct for muliple criteria