-48.45% is the change from 871 to 449
Calculation steps:
[( 449 - 871 ) ÷ 871] x 100 = -48.45%
Formula
Percentage change = [(449 - 871) / 871] x 100
Subtract the new number by the original number
449 - 871 = -422
-422 ÷ 871 = -0.4845005740528129
-0.4845005740528129 x 100 = -48.45%