-78.47% is the change from 878 to 189
Calculation steps:
[( 189 - 878 ) ÷ 878] x 100 = -78.47%
Formula
Percentage change = [(189 - 878) / 878] x 100
Subtract the new number by the original number
189 - 878 = -689
-689 ÷ 878 = -0.784738041002278
-0.784738041002278 x 100 = -78.47%