Here is one way, =IF(ISBLANK(E8),"",C8*D8)

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Paul B
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Using Excel 2002 & 2003

"drisok" wrote in message
...
I am using an =if function as follows: =IF(E8"",C8*D8,"")

Right now the formula only works if E8 contains a letter, I would like it
to work for a letter AND a number but cannot figure out how.

Any help would be appreciated.