48.55% is the change from 449 to 667
Calculation steps:
[( 667 - 449 ) ÷ 449] x 100 = 48.55%
Formula
Percentage change = [(667 - 449) / 449] x 100
Subtract the new number by the original number
667 - 449 = 218
218 ÷ 449 = 0.48552338530066813
0.48552338530066813 x 100 = 48.55%