-4.82% is the change from 872 to 830
Calculation steps:
[( 830 - 872 ) ÷ 872] x 100 = -4.82%
Formula
Percentage change = [(830 - 872) / 872] x 100
Subtract the new number by the original number
830 - 872 = -42
-42 ÷ 872 = -0.0481651376146789
-0.0481651376146789 x 100 = -4.82%