-47.43% is the change from 856 to 450
Calculation steps:
[( 450 - 856 ) ÷ 856] x 100 = -47.43%
Formula
Percentage change = [(450 - 856) / 856] x 100
Subtract the new number by the original number
450 - 856 = -406
-406 ÷ 856 = -0.4742990654205608
-0.4742990654205608 x 100 = -47.43%