-48.74% is the change from 870 to 446
Calculation steps:
[( 446 - 870 ) ÷ 870] x 100 = -48.74%
Formula
Percentage change = [(446 - 870) / 870] x 100
Subtract the new number by the original number
446 - 870 = -424
-424 ÷ 870 = -0.48735632183908045
-0.48735632183908045 x 100 = -48.74%