28.79% is the change from 448 to 577
Calculation steps:
[( 577 - 448 ) ÷ 448] x 100 = 28.79%
Formula
Percentage change = [(577 - 448) / 448] x 100
Subtract the new number by the original number
577 - 448 = 129
129 ÷ 448 = 0.28794642857142855
0.28794642857142855 x 100 = 28.79%