185.83% is the change from 240 to 686
Calculation steps:
[( 686 - 240 ) ÷ 240] x 100 = 185.83%
Formula
Percentage change = [(686 - 240) / 240] x 100
Subtract the new number by the original number
686 - 240 = 446
446 ÷ 240 = 1.8583333333333334
1.8583333333333334 x 100 = 185.83%