635.8% is the change from 81 to 596
Calculation steps:
[( 596 - 81 ) ÷ 81] x 100 = 635.8%
Formula
Percentage change = [(596 - 81) / 81] x 100
Subtract the new number by the original number
596 - 81 = 515
515 ÷ 81 = 6.3580246913580245
6.3580246913580245 x 100 = 635.8%