First of all, the "SUMs" in the formula that you found are all
*unnecessary*.
Use John's formula instead.
Second, I didn't open your attachment (attachments are frowned upon in these
groups), but try this to eliminate the #DIV/0! errors:
=AVERAGE(IF(NOT(ISERR(G11:G20)),G11:G20))
NOTE! - this is an array formula and *must* be entered with CSE (<Ctrl>
<Shift> <Enter>).
If done correctly, the formula will *automatically* be enclosed in curly
brackets.
--
HTH,
RD
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Please keep all correspondence within the Group, so all may benefit!
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Thanks a million. I actually found another that did work, but this one
also works. Here's the one I found,
=SUM(IF(C4>B5,SUM(B5/C4),SUM(C4/B5))). I have another if you don't
mind, I am trying to average the calculated percentages by an entire
column. When there is nothing to divide, you obviously get the #DIV/0!
error. I want to ignore those until values are entered. The formulas
are to be entered in L2, L3, L4. L2 averages column G, L3 averages
column H and L4 averages column I. I attached the file if this helps.
Any suggestions? Thanks again. John
Attachment filename: book1.xls
Download attachment:
http://www.excelforum.com/attachment.php?postid=500322