49.44% is the change from 449 to 671
Calculation steps:
[( 671 - 449 ) ÷ 449] x 100 = 49.44%
Formula
Percentage change = [(671 - 449) / 449] x 100
Subtract the new number by the original number
671 - 449 = 222
222 ÷ 449 = 0.49443207126948774
0.49443207126948774 x 100 = 49.44%