35.57% is the change from 506 to 686
Calculation steps:
[( 686 - 506 ) ÷ 506] x 100 = 35.57%
Formula
Percentage change = [(686 - 506) / 506] x 100
Subtract the new number by the original number
686 - 506 = 180
180 ÷ 506 = 0.3557312252964427
0.3557312252964427 x 100 = 35.57%