-86.44% is the change from 686 to 93
Calculation steps:
[( 93 - 686 ) ÷ 686] x 100 = -86.44%
Formula
Percentage change = [(93 - 686) / 686] x 100
Subtract the new number by the original number
93 - 686 = -593
-593 ÷ 686 = -0.8644314868804664
-0.8644314868804664 x 100 = -86.44%