-83.68% is the change from 858 to 140
Calculation steps:
[( 140 - 858 ) ÷ 858] x 100 = -83.68%
Formula
Percentage change = [(140 - 858) / 858] x 100
Subtract the new number by the original number
140 - 858 = -718
-718 ÷ 858 = -0.8368298368298368
-0.8368298368298368 x 100 = -83.68%