-98.75% is the change from 878 to 11
Calculation steps:
[( 11 - 878 ) ÷ 878] x 100 = -98.75%
Formula
Percentage change = [(11 - 878) / 878] x 100
Subtract the new number by the original number
11 - 878 = -867
-867 ÷ 878 = -0.9874715261958997
-0.9874715261958997 x 100 = -98.75%