-28.47% is the change from 878 to 628
Calculation steps:
[( 628 - 878 ) ÷ 878] x 100 = -28.47%
Formula
Percentage change = [(628 - 878) / 878] x 100
Subtract the new number by the original number
628 - 878 = -250
-250 ÷ 878 = -0.2847380410022779
-0.2847380410022779 x 100 = -28.47%