31.17% is the change from 523 to 686
Calculation steps:
[( 686 - 523 ) ÷ 523] x 100 = 31.17%
Formula
Percentage change = [(686 - 523) / 523] x 100
Subtract the new number by the original number
686 - 523 = 163
163 ÷ 523 = 0.31166347992351817
0.31166347992351817 x 100 = 31.17%