-16.88% is the change from 871 to 724
Calculation steps:
[( 724 - 871 ) ÷ 871] x 100 = -16.88%
Formula
Percentage change = [(724 - 871) / 871] x 100
Subtract the new number by the original number
724 - 871 = -147
-147 ÷ 871 = -0.1687715269804822
-0.1687715269804822 x 100 = -16.88%