-6.42% is the change from 872 to 816
Calculation steps:
[( 816 - 872 ) ÷ 872] x 100 = -6.42%
Formula
Percentage change = [(816 - 872) / 872] x 100
Subtract the new number by the original number
816 - 872 = -56
-56 ÷ 872 = -0.06422018348623854
-0.06422018348623854 x 100 = -6.42%