-4.47% is the change from 873 to 834
Calculation steps:
[( 834 - 873 ) ÷ 873] x 100 = -4.47%
Formula
Percentage change = [(834 - 873) / 873] x 100
Subtract the new number by the original number
834 - 873 = -39
-39 ÷ 873 = -0.044673539518900345
-0.044673539518900345 x 100 = -4.47%