51.22% is the change from 449 to 679
Calculation steps:
[( 679 - 449 ) ÷ 449] x 100 = 51.22%
Formula
Percentage change = [(679 - 449) / 449] x 100
Subtract the new number by the original number
679 - 449 = 230
230 ÷ 449 = 0.512249443207127
0.512249443207127 x 100 = 51.22%