15.49% is the change from 594 to 686
Calculation steps:
[( 686 - 594 ) ÷ 594] x 100 = 15.49%
Formula
Percentage change = [(686 - 594) / 594] x 100
Subtract the new number by the original number
686 - 594 = 92
92 ÷ 594 = 0.15488215488215487
0.15488215488215487 x 100 = 15.49%