=IF(A1<"y",0,IF(B1="y",F1*5%,F1*10%))
[You don't need the AND(A1="y",B1="y"), because you don't get to the second
test unless A1="y".]
--
David Biddulph

"Ian R" wrote in message
...
Hi

I have successfully used the IF function on my worksheet so that if two
conditions are met it will do one calculation or another

However I'd like to know if its possible to get it to work with three
conditions e.g

if a1="y" AND b1="y" then f1*5% otherwise f1*10% but if a1<"y" then just
ignore the calculation and enter a zero or a blank space.

I've got as far as nesting the first logical part which works e.g.

=IF(AND(A1="y",B1="y"),F1*5%,F1*10%)

But it falls over if A1 is anything other than "y".

How can I get it to do the first if/then but ignore them both if A1 does
not = "y"?

I hope this is clear and there isn't too much repetition.

Thanks very much for your time and assistance

Ian