-83.89% is the change from 987 to 159
Calculation steps:
[( 159 - 987 ) ÷ 987] x 100 = -83.89%
Formula
Percentage change = [(159 - 987) / 987] x 100
Subtract the new number by the original number
159 - 987 = -828
-828 ÷ 987 = -0.8389057750759878
-0.8389057750759878 x 100 = -83.89%