Add Calculated % Row to Visual

[HarveyA]

Newbie here so all help gratefully received.

I have a matrix visualisation as below and wish to add a row under Total which shows the value of T as a % of the Total.

I have searched high and low and am struggling to find a solution for this.  Could someone please point me in the right direction.

Thanks

Harv

[lbendlin]

Not possible in Power BI. It goes against design principles to show the same data twice in the same visual.  Consider using "show values as"  (but that will switch everything to percentages) or consider replacing the Total values with percentages via measures.