-55.57% is the change from 871 to 387
Calculation steps:
[( 387 - 871 ) ÷ 871] x 100 = -55.57%
Formula
Percentage change = [(387 - 871) / 871] x 100
Subtract the new number by the original number
387 - 871 = -484
-484 ÷ 871 = -0.5556831228473019
-0.5556831228473019 x 100 = -55.57%