-46.9% is the change from 855 to 454
Calculation steps:
[( 454 - 855 ) ÷ 855] x 100 = -46.9%
Formula
Percentage change = [(454 - 855) / 855] x 100
Subtract the new number by the original number
454 - 855 = -401
-401 ÷ 855 = -0.46900584795321637
-0.46900584795321637 x 100 = -46.9%