Visual for Variance

hi

i need good representation of visual for variance % . I have actual and base values correctly i am using custom visual of ultimate variance visual . All is well but my customer is asking if i can sort out the values by percentage desc . I see here it is not possible currently i can sort out by variance values but not the % . Is there any visual which you can help with ?.

If you see above i need 4.1% to be on the top . Since the perntage is calcuclated on variance =actual-base measure . The highest variance is being sorted but not the percentage . Anyone can help here ??