-46.61% is the change from 856 to 457
Calculation steps:
[( 457 - 856 ) ÷ 856] x 100 = -46.61%
Formula
Percentage change = [(457 - 856) / 856] x 100
Subtract the new number by the original number
457 - 856 = -399
-399 ÷ 856 = -0.4661214953271028
-0.4661214953271028 x 100 = -46.61%