-16.07% is the change from 871 to 731
Calculation steps:
[( 731 - 871 ) ÷ 871] x 100 = -16.07%
Formula
Percentage change = [(731 - 871) / 871] x 100
Subtract the new number by the original number
731 - 871 = -140
-140 ÷ 871 = -0.16073478760045926
-0.16073478760045926 x 100 = -16.07%