Running percent of total in pivot table

Question & Answer
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Pivot table function does not have ‘Running percent of total’. Result showed in example is after applying ‘percent of total’ function from QuickSight.

I need same function like ‘running total’ but in percentage which is not listed.
R1C1 R1C2
Count1% Count1%+Count 2% And so on

Is there any other way it can be done, percent value is based on count aggregate.