-83.99% is the change from 987 to 158
Calculation steps:
[( 158 - 987 ) ÷ 987] x 100 = -83.99%
Formula
Percentage change = [(158 - 987) / 987] x 100
Subtract the new number by the original number
158 - 987 = -829
-829 ÷ 987 = -0.839918946301925
-0.839918946301925 x 100 = -83.99%