Pivot: Subtotal Total Percentage to 100% for each item on column area

Hi All,

PSA the xls.

Row Area: Case Owner
Column Area: Severity and First Response SLO
Data Area: TOtal number of cases

I am looking for a way to have total percentage for Severity1 = 100% and Severity2 = 100%.
I have selected % of row total in field setting and its not fulfilling my purpose.

Can anyone help plz??