I couldn't open your attachment however, recreated with superstore data.
Create following calc for percentage:
Bring MEASURE VALUES to TEXT marks card.
Add the measures you want to show, in this case the sum of sales and calculation1.
Then Bring MEASURE NAMES to to COLUMNS.
Next go to ANALYSIS > TOTALS > Show column grand totals
Next go to ANALYSIS > TOTALS > Show row grand totals
click on drop down of Calculation1 and COMPUTE USING > Table (down).
Superstore.twbx 352.4 KB
thank you very much it worked.
Awesome, glad to help