create a calcaluted field
place it in text field and make sure that total is on. hope this helps if not could you please attach the workbook so that it will be helpful to others
If this answer helps kindly mark this answer as correct/helpful so that it will help others
Thanks for suggestion.
I cannot apply average function on metric since I get error message "Argument to av is already aggregated and cannot be further aggregated.
My metric definition is
((SUM([Nb Active Users])) / LOOKUP((SUM([Nb Active Users])), FIRST())*100)