-87.7% is the change from 878 to 108
Calculation steps:
[( 108 - 878 ) ÷ 878] x 100 = -87.7%
Formula
Percentage change = [(108 - 878) / 878] x 100
Subtract the new number by the original number
108 - 878 = -770
-770 ÷ 878 = -0.876993166287016
-0.876993166287016 x 100 = -87.7%