15.94% is the change from 502 to 582
Calculation steps:
[( 582 - 502 ) ÷ 502] x 100 = 15.94%
Formula
Percentage change = [(582 - 502) / 502] x 100
Subtract the new number by the original number
582 - 502 = 80
80 ÷ 502 = 0.1593625498007968
0.1593625498007968 x 100 = 15.94%