-46.42% is the change from 851 to 456
Calculation steps:
[( 456 - 851 ) ÷ 851] x 100 = -46.42%
Formula
Percentage change = [(456 - 851) / 851] x 100
Subtract the new number by the original number
456 - 851 = -395
-395 ÷ 851 = -0.46415981198589895
-0.46415981198589895 x 100 = -46.42%