15.34% is the change from 502 to 579
Calculation steps:
[( 579 - 502 ) ÷ 502] x 100 = 15.34%
Formula
Percentage change = [(579 - 502) / 502] x 100
Subtract the new number by the original number
579 - 502 = 77
77 ÷ 502 = 0.15338645418326693
0.15338645418326693 x 100 = 15.34%