-45.44% is the change from 823 to 449
Calculation steps:
[( 449 - 823 ) ÷ 823] x 100 = -45.44%
Formula
Percentage change = [(449 - 823) / 823] x 100
Subtract the new number by the original number
449 - 823 = -374
-374 ÷ 823 = -0.45443499392466585
-0.45443499392466585 x 100 = -45.44%