-53.39% is the change from 871 to 406
Calculation steps:
[( 406 - 871 ) ÷ 871] x 100 = -53.39%
Formula
Percentage change = [(406 - 871) / 871] x 100
Subtract the new number by the original number
406 - 871 = -465
-465 ÷ 871 = -0.5338691159586682
-0.5338691159586682 x 100 = -53.39%