-46.81% is the change from 831 to 442
Calculation steps:
[( 442 - 831 ) ÷ 831] x 100 = -46.81%
Formula
Percentage change = [(442 - 831) / 831] x 100
Subtract the new number by the original number
442 - 831 = -389
-389 ÷ 831 = -0.4681107099879663
-0.4681107099879663 x 100 = -46.81%