-83.83% is the change from 878 to 142
Calculation steps:
[( 142 - 878 ) ÷ 878] x 100 = -83.83%
Formula
Percentage change = [(142 - 878) / 878] x 100
Subtract the new number by the original number
142 - 878 = -736
-736 ÷ 878 = -0.8382687927107062
-0.8382687927107062 x 100 = -83.83%