Display total percentages in a new straight table without and rows just a three calculated columns names

[#1]

I want to display total percentages of calculated columns
(Usage inf%, price inf%, inf%)

without any rows corresponding to these three columns.

I want to display the total percentage in a new straight table .

[Gysbert_Wassenaar]

Clone the straight table and remove the dimensions from the cloned straight table.

[#3]

then it is not giving the correct % in total.

[Gysbert_Wassenaar]

Then please post the offending document.