8.66% is the change from 531 to 577
Calculation steps:
[( 577 - 531 ) ÷ 531] x 100 = 8.66%
Formula
Percentage change = [(577 - 531) / 531] x 100
Subtract the new number by the original number
577 - 531 = 46
46 ÷ 531 = 0.08662900188323917
0.08662900188323917 x 100 = 8.66%