-2.73% is the change from 878 to 854
Calculation steps:
[( 854 - 878 ) ÷ 878] x 100 = -2.73%
Formula
Percentage change = [(854 - 878) / 878] x 100
Subtract the new number by the original number
854 - 878 = -24
-24 ÷ 878 = -0.02733485193621868
-0.02733485193621868 x 100 = -2.73%