13.6% is the change from 500 to 568
Calculation steps:
[( 568 - 500 ) ÷ 500] x 100 = 13.6%
Formula
Percentage change = [(568 - 500) / 500] x 100
Subtract the new number by the original number
568 - 500 = 68
68 ÷ 500 = 0.136
0.136 x 100 = 13.6%
Example