-25.28% is the change from 878 to 656
Calculation steps:
[( 656 - 878 ) ÷ 878] x 100 = -25.28%
Formula
Percentage change = [(656 - 878) / 878] x 100
Subtract the new number by the original number
656 - 878 = -222
-222 ÷ 878 = -0.2528473804100228
-0.2528473804100228 x 100 = -25.28%