107.25% is the change from 331 to 686
Calculation steps:
[( 686 - 331 ) ÷ 331] x 100 = 107.25%
Formula
Percentage change = [(686 - 331) / 331] x 100
Subtract the new number by the original number
686 - 331 = 355
355 ÷ 331 = 1.0725075528700907
1.0725075528700907 x 100 = 107.25%