-5.58% is the change from 878 to 829
Calculation steps:
[( 829 - 878 ) ÷ 878] x 100 = -5.58%
Formula
Percentage change = [(829 - 878) / 878] x 100
Subtract the new number by the original number
829 - 878 = -49
-49 ÷ 878 = -0.05580865603644647
-0.05580865603644647 x 100 = -5.58%