-85.86% is the change from 686 to 97
Calculation steps:
[( 97 - 686 ) ÷ 686] x 100 = -85.86%
Formula
Percentage change = [(97 - 686) / 686] x 100
Subtract the new number by the original number
97 - 686 = -589
-589 ÷ 686 = -0.858600583090379
-0.858600583090379 x 100 = -85.86%