-6.54% is the change from 872 to 815
Calculation steps:
[( 815 - 872 ) ÷ 872] x 100 = -6.54%
Formula
Percentage change = [(815 - 872) / 872] x 100
Subtract the new number by the original number
815 - 872 = -57
-57 ÷ 872 = -0.06536697247706422
-0.06536697247706422 x 100 = -6.54%