-88.95% is the change from 878 to 97
Calculation steps:
[( 97 - 878 ) ÷ 878] x 100 = -88.95%
Formula
Percentage change = [(97 - 878) / 878] x 100
Subtract the new number by the original number
97 - 878 = -781
-781 ÷ 878 = -0.8895216400911162
-0.8895216400911162 x 100 = -88.95%