66.82% is the change from 449 to 749
Calculation steps:
[( 749 - 449 ) ÷ 449] x 100 = 66.82%
Formula
Percentage change = [(749 - 449) / 449] x 100
Subtract the new number by the original number
749 - 449 = 300
300 ÷ 449 = 0.6681514476614699
0.6681514476614699 x 100 = 66.82%