Hey with Pivot Table Sums

Hi there, been having some issues trying to get the proper getpivotdata sum on the attached sheet. What I'm wanting to do, is based on the contract year time frame for the given client, grab the sum of the sales from the pivot table on the Data tab. I just can't get my head wrapped around the proper formula to get the sum across the multiple cells in the pivot table properly. Hoping someone can help!

Thanks in advance!

Edit: That should read help...must need more coffee for a Monday morning! lol