-28.36% is the change from 871 to 624
Calculation steps:
[( 624 - 871 ) ÷ 871] x 100 = -28.36%
Formula
Percentage change = [(624 - 871) / 871] x 100
Subtract the new number by the original number
624 - 871 = -247
-247 ÷ 871 = -0.2835820895522388
-0.2835820895522388 x 100 = -28.36%