577.78% is the change from 90 to 610
Calculation steps:
[( 610 - 90 ) ÷ 90] x 100 = 577.78%
Formula
Percentage change = [(610 - 90) / 90] x 100
Subtract the new number by the original number
610 - 90 = 520
520 ÷ 90 = 5.777777777777778
5.777777777777778 x 100 = 577.78%