30.96% is the change from 449 to 588
Calculation steps:
[( 588 - 449 ) ÷ 449] x 100 = 30.96%
Formula
Percentage change = [(588 - 449) / 449] x 100
Subtract the new number by the original number
588 - 449 = 139
139 ÷ 449 = 0.30957683741648107
0.30957683741648107 x 100 = 30.96%