Array Lookup, Return/Sum Multiple Values

Here's what I'm trying to accomplish... it seems so simple but pulling my hair out. In the attached sheet, I want to look up values from table (A1:G5) and then for each occurrence of a particular number, return the value in the same row in column H, and sum when there are multiple values (see green shaded area for desired output. For example, the number 8 occurs in E3, E4, and G5. I want to return the sum of the corresponding values in column H (1,5, and 2). I've spent hours trying to work this one out, I'm sure this is probably an array formula, but I can't manage to make it work. A little professional help would be appreciated!

Hi,

you could try in L2 and copy down

=SUMPRODUCT(($B$2:$G$5=K2)*$H$2:$H$5)

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