609.88% is the change from 81 to 575
Calculation steps:
[( 575 - 81 ) ÷ 81] x 100 = 609.88%
Formula
Percentage change = [(575 - 81) / 81] x 100
Subtract the new number by the original number
575 - 81 = 494
494 ÷ 81 = 6.098765432098766
6.098765432098766 x 100 = 609.88%