18.07% is the change from 581 to 686
Calculation steps:
[( 686 - 581 ) ÷ 581] x 100 = 18.07%
Formula
Percentage change = [(686 - 581) / 581] x 100
Subtract the new number by the original number
686 - 581 = 105
105 ÷ 581 = 0.18072289156626506
0.18072289156626506 x 100 = 18.07%