-3.9% is the change from 872 to 838
Calculation steps:
[( 838 - 872 ) ÷ 872] x 100 = -3.9%
Formula
Percentage change = [(838 - 872) / 872] x 100
Subtract the new number by the original number
838 - 872 = -34
-34 ÷ 872 = -0.0389908256880734
-0.0389908256880734 x 100 = -3.9%