-81.89% is the change from 878 to 159
Calculation steps:
[( 159 - 878 ) ÷ 878] x 100 = -81.89%
Formula
Percentage change = [(159 - 878) / 878] x 100
Subtract the new number by the original number
159 - 878 = -719
-719 ÷ 878 = -0.8189066059225513
-0.8189066059225513 x 100 = -81.89%