Dynamic totals based on totals of other columns

[Anonymous]

hello,

I have table report below , I want to grandtotal of CY DOH LBs   the same way  I am calculating every single row 

CY OH lbs/ AvgSaleslast90days.

10200.00/24.44 which  are totals for columns CY OH LBs and Avg Sales last 90 days , right now Power BI is doing a simple column total.4368.29

so 10200.00/24.44  = 417.34   and not 4,368.29 which total of all rows in that column, whats the best way to approach this????