-84.11% is the change from 686 to 109
Calculation steps:
[( 109 - 686 ) ÷ 686] x 100 = -84.11%
Formula
Percentage change = [(109 - 686) / 686] x 100
Subtract the new number by the original number
109 - 686 = -577
-577 ÷ 686 = -0.8411078717201166
-0.8411078717201166 x 100 = -84.11%