Maybe

=IF(OR(count(D45:D61)=0,D45:E61=""),"",PRODUCT(D45 :D61))

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HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my addy)

"billy-bob" wrote in message
...
i'm trying to generate an automatic form (which will locked down)
within the hiden E columm if have a list of numbers, so when i pick 'p'
(this is a tick mark in wingdings) from a drop-down in columm C, it
automatically aprears in columm D as choosen.
at the bottom of the form all choosen items in columm D need to be
multiplied altogether so i used the product formula -
=PRODUCT(D30:D60)
However because not all of the items in the columm can be choosen at
anyone
time - it was coming up as a blank cell - so after looking through this
site
I tried this -
=IF(OR(D45:D61=0,D45:E61=""),"",PRODUCT(D45:D61))
to elminate the possible zero being generated
it still doesn't work and i'm at a lost
can anyone help!

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billy-bob