Try

=sumproduct(--(a1:a100="Location"),--(b1:b100="Product),(c1:c100)/(sumproduct(--(a1:a100="Location"),--(b1:b100="Product),(c1:c100)
+ sumproduct(--(a1:a100="Location"),--(b1:b100="Product),(d1:d100))

No error checking provided.

"MrRJ" wrote:

Good morning!

I am using Sumproduct in my spreadsheet. I am trying to do a division
within. Here is my problem.

Location Product volumn Amount

I need to match the location and product, once that is done, then I need to
do sum of volume * (sum of amount / sum of volume).

Hope this makes sense.
Thanks,
Rich