I have a table named "Open" that contains values of DPL_900, DP_950, etc. I want to calculate the sum of multi between quantity and each value of DPL_900, DP_950 which "Vlookup" in Open table. So I typed in the cell K98 that formula:
{=SUMPRODUCT(K93:K97,VLOOKUP(L93:L97,Open,2,0))}.
I thought that formula would work but it does not.

