-81.79% is the change from 873 to 159
Calculation steps:
[( 159 - 873 ) ÷ 873] x 100 = -81.79%
Formula
Percentage change = [(159 - 873) / 873] x 100
Subtract the new number by the original number
159 - 873 = -714
-714 ÷ 873 = -0.8178694158075601
-0.8178694158075601 x 100 = -81.79%