-46.79% is the change from 857 to 456
Calculation steps:
[( 456 - 857 ) ÷ 857] x 100 = -46.79%
Formula
Percentage change = [(456 - 857) / 857] x 100
Subtract the new number by the original number
456 - 857 = -401
-401 ÷ 857 = -0.4679113185530922
-0.4679113185530922 x 100 = -46.79%