768.35% is the change from 79 to 686
Calculation steps:
[( 686 - 79 ) ÷ 79] x 100 = 768.35%
Formula
Percentage change = [(686 - 79) / 79] x 100
Subtract the new number by the original number
686 - 79 = 607
607 ÷ 79 = 7.6835443037974684
7.6835443037974684 x 100 = 768.35%