-15.73% is the change from 871 to 734
Calculation steps:
[( 734 - 871 ) ÷ 871] x 100 = -15.73%
Formula
Percentage change = [(734 - 871) / 871] x 100
Subtract the new number by the original number
734 - 871 = -137
-137 ÷ 871 = -0.15729047072330654
-0.15729047072330654 x 100 = -15.73%