34.3% is the change from 449 to 603
Calculation steps:
[( 603 - 449 ) ÷ 449] x 100 = 34.3%
Formula
Percentage change = [(603 - 449) / 449] x 100
Subtract the new number by the original number
603 - 449 = 154
154 ÷ 449 = 0.3429844097995546
0.3429844097995546 x 100 = 34.3%