697.67% is the change from 86 to 686
Calculation steps:
[( 686 - 86 ) ÷ 86] x 100 = 697.67%
Formula
Percentage change = [(686 - 86) / 86] x 100
Subtract the new number by the original number
686 - 86 = 600
600 ÷ 86 = 6.976744186046512
6.976744186046512 x 100 = 697.67%