Missing Totals for Calculated Items/Calculated Groups

Good morning all, first time posting.

I am using a calculation group with tab editor to create results for various time intervals. One of my calculated items takes the result from some of the time intervals and uses a switch formula to calculate a 1 to 5 rating based on a scale (Weighted CM Rating and Weighted CY Rating). 

I would like to have a total row for the Weighted CM and Weighted CY columns.

Any suggestions?

Thanks in advance!