13.55% is the change from 502 to 570
Calculation steps:
[( 570 - 502 ) ÷ 502] x 100 = 13.55%
Formula
Percentage change = [(570 - 502) / 502] x 100
Subtract the new number by the original number
570 - 502 = 68
68 ÷ 502 = 0.13545816733067728
0.13545816733067728 x 100 = 13.55%