-47.72% is the change from 855 to 447
Calculation steps:
[( 447 - 855 ) ÷ 855] x 100 = -47.72%
Formula
Percentage change = [(447 - 855) / 855] x 100
Subtract the new number by the original number
447 - 855 = -408
-408 ÷ 855 = -0.47719298245614034
-0.47719298245614034 x 100 = -47.72%