-54.31% is the change from 871 to 398
Calculation steps:
[( 398 - 871 ) ÷ 871] x 100 = -54.31%
Formula
Percentage change = [(398 - 871) / 871] x 100
Subtract the new number by the original number
398 - 871 = -473
-473 ÷ 871 = -0.5430539609644087
-0.5430539609644087 x 100 = -54.31%