Sum with Datedif Formula

Question

Ihave a formula like this

=IF(DATEDIF(D4;DATE(2014;8;31);"Y")>15;DATEDIF(D4;DATE(2014;8;31);"Y")*12500+VLOOKUP(VALUE(LEFT(C4;1));$U$22:$Z$25;7;FALSE);0)

But returned a #REF, results? can you tell me what's wrong on this formula?

Answer 1

One obvious mistake I see is here:

VLOOKUP(VALUE(LEFT(C4;1));$U$22:$Z$25;7;FALSE

$U$22:$Z$25 has only 6 columns but you want to get value from the 7th.