-50.28% is the change from 903 to 449
Calculation steps:
[( 449 - 903 ) ÷ 903] x 100 = -50.28%
Formula
Percentage change = [(449 - 903) / 903] x 100
Subtract the new number by the original number
449 - 903 = -454
-454 ÷ 903 = -0.5027685492801772
-0.5027685492801772 x 100 = -50.28%