Have a problem where a V lookup is working correctly in some cells but not in others. Example of the code is.
=IF(VLOOKUP($C191,'Sales 2013'!$A$3:$V$16888,15,TRUE)>0,(FU191-IFERROR(VLOOKUP(Products!$C191,'Sales 2013'!$A$2:R$5560,18,FALSE),0)*1.25+EQ191),(FU191-FA191+EQ191))
Thanks in advance