4.57% is the change from 656 to 686
Calculation steps:
[( 686 - 656 ) ÷ 656] x 100 = 4.57%
Formula
Percentage change = [(686 - 656) / 656] x 100
Subtract the new number by the original number
686 - 656 = 30
30 ÷ 656 = 0.04573170731707317
0.04573170731707317 x 100 = 4.57%