-72.22% is the change from 871 to 242
Calculation steps:
[( 242 - 871 ) ÷ 871] x 100 = -72.22%
Formula
Percentage change = [(242 - 871) / 871] x 100
Subtract the new number by the original number
242 - 871 = -629
-629 ÷ 871 = -0.722158438576349
-0.722158438576349 x 100 = -72.22%