57.02% is the change from 449 to 705
Calculation steps:
[( 705 - 449 ) ÷ 449] x 100 = 57.02%
Formula
Percentage change = [(705 - 449) / 449] x 100
Subtract the new number by the original number
705 - 449 = 256
256 ÷ 449 = 0.5701559020044543
0.5701559020044543 x 100 = 57.02%