Maybe...
=IF(ISERROR(AA53*AH53*K53*AD53),0,IF(AND(K53=0,N53 =0),0,IF(M53<(R53*0.1),MAX(K53,N53,K53*AD53),
IF(V53<U53,AA53*AH53,MAX(K53,N53,AA53*AH53)))))

Note: the following replaces the equal sign in your formula...
=IF(ISERROR(AA53*AH53*K53*AD53),0,
Also, and additional ")" is required at the end of the formula.
--
Jim Cone
Portland, Oregon USA



"Alberta Rose"

wrote in message
=IF(AND(K53=0,N53=0),0,IF(M53<(R53*0.1),MAX(K53,N5 3,K53*AD53),
IF(V53<U53,AA53*AH53,MAX(K53,N53,AA53*AH53))))

If none of the conditions in the above formula are met, I would like to
return a value of zero. I'm unsure of how to do this. Help please :)
Thanks...Laurie