by osknows » Mon Sep 06, 2010 10:06 pm
This ARRAY formula will work out if any prices match in the back column F
=IF(SUM(IF(FREQUENCY(F5:F55,F5:F55)>0,1))-COUNT(F5:F55)=0,"All Unique","At least one match" )
As its an array formula enter the formula using CTRL+SHIFT+ENTER