-83.96% is the change from 985 to 158
Calculation steps:
[( 158 - 985 ) ÷ 985] x 100 = -83.96%
Formula
Percentage change = [(158 - 985) / 985] x 100
Subtract the new number by the original number
158 - 985 = -827
-827 ÷ 985 = -0.8395939086294416
-0.8395939086294416 x 100 = -83.96%