Yes, you can't just add 20% to the value returned by the vlookup as you
are trying to do, you have to multiply this value by 1.2 (i.e. 120%) as
Dave suggests.
Yeah, I thought about putting that version for the OP as well, but then
he already had the other one so it would be easier for him to edit that
(only 4 characters needed changing, plus his missing bracket).