61.02% is the change from 449 to 723
Calculation steps:
[( 723 - 449 ) ÷ 449] x 100 = 61.02%
Formula
Percentage change = [(723 - 449) / 449] x 100
Subtract the new number by the original number
723 - 449 = 274
274 ÷ 449 = 0.6102449888641426
0.6102449888641426 x 100 = 61.02%