P Purdue15 Registered User. Local time Yesterday, 22:57 Joined Jun 12, 2013 Messages 29 Jun 21, 2013 #1 (("Correct_Add([Weight)]-New_Add([Weight)]")/("Correct_Add([Weight)]"))*100
pbaldy Wino Moderator Staff member Local time Yesterday, 22:57 Joined Aug 30, 2003 Messages 36,272 Jun 21, 2013 #2 Not much to go on, but the quotes look out of place, and the mix of () and [] seem out of kilter.