49.89% is the change from 449 to 673
Calculation steps:
[( 673 - 449 ) ÷ 449] x 100 = 49.89%
Formula
Percentage change = [(673 - 449) / 449] x 100
Subtract the new number by the original number
673 - 449 = 224
224 ÷ 449 = 0.49888641425389757
0.49888641425389757 x 100 = 49.89%