Frank,

If using DV, then it can only be Y or N, so the extra N test is superfluous.

--

HTH

Bob Phillips
... looking out across Poole Harbour to the Purbecks
(remove nothere from the email address if mailing direct)

"Frank Kabel" wrote in message
...
Hi
assuming that your validated cell is A3 and the target cell A4 enter
the following in A4:
=IF(A3="Y",B1+B2-(A1+A2),IF(A3="N",C1+C2-(A1+A2),""))

HTH
Frank

Hi,

I have validated a cell(Data Validation) where the validation
criteria
allows a list and the source is 2 cells containing Y, N.
Now, depending on the list selected, a formula should be calculated.
ie. if Y, (B1+B2)-(A1+A2)
if N, (C1+C2)-(A1+A2)

I have tried a lot but in vain.

Pls help out.
Sups