-83.58% is the change from 871 to 143
Calculation steps:
[( 143 - 871 ) ÷ 871] x 100 = -83.58%
Formula
Percentage change = [(143 - 871) / 871] x 100
Subtract the new number by the original number
143 - 871 = -728
-728 ÷ 871 = -0.835820895522388
-0.835820895522388 x 100 = -83.58%