40.53% is the change from 449 to 631
Calculation steps:
[( 631 - 449 ) ÷ 449] x 100 = 40.53%
Formula
Percentage change = [(631 - 449) / 449] x 100
Subtract the new number by the original number
631 - 449 = 182
182 ÷ 449 = 0.4053452115812918
0.4053452115812918 x 100 = 40.53%