-51.32% is the change from 871 to 424
Calculation steps:
[( 424 - 871 ) ÷ 871] x 100 = -51.32%
Formula
Percentage change = [(424 - 871) / 871] x 100
Subtract the new number by the original number
424 - 871 = -447
-447 ÷ 871 = -0.513203214695752
-0.513203214695752 x 100 = -51.32%