-81.8% is the change from 868 to 158
Calculation steps:
[( 158 - 868 ) ÷ 868] x 100 = -81.8%
Formula
Percentage change = [(158 - 868) / 868] x 100
Subtract the new number by the original number
158 - 868 = -710
-710 ÷ 868 = -0.8179723502304147
-0.8179723502304147 x 100 = -81.8%