-82.94% is the change from 686 to 117
Calculation steps:
[( 117 - 686 ) ÷ 686] x 100 = -82.94%
Formula
Percentage change = [(117 - 686) / 686] x 100
Subtract the new number by the original number
117 - 686 = -569
-569 ÷ 686 = -0.8294460641399417
-0.8294460641399417 x 100 = -82.94%