30.51% is the change from 449 to 586
Calculation steps:
[( 586 - 449 ) ÷ 449] x 100 = 30.51%
Formula
Percentage change = [(586 - 449) / 449] x 100
Subtract the new number by the original number
586 - 449 = 137
137 ÷ 449 = 0.3051224944320713
0.3051224944320713 x 100 = 30.51%