-82.8% is the change from 686 to 118
Calculation steps:
[( 118 - 686 ) ÷ 686] x 100 = -82.8%
Formula
Percentage change = [(118 - 686) / 686] x 100
Subtract the new number by the original number
118 - 686 = -568
-568 ÷ 686 = -0.8279883381924198
-0.8279883381924198 x 100 = -82.8%