28.73% is the change from 449 to 578
Calculation steps:
[( 578 - 449 ) ÷ 449] x 100 = 28.73%
Formula
Percentage change = [(578 - 449) / 449] x 100
Subtract the new number by the original number
578 - 449 = 129
129 ÷ 449 = 0.2873051224944321
0.2873051224944321 x 100 = 28.73%