30.8% is the change from 461 to 603
Calculation steps:
[( 603 - 461 ) ÷ 461] x 100 = 30.8%
Formula
Percentage change = [(603 - 461) / 461] x 100
Subtract the new number by the original number
603 - 461 = 142
142 ÷ 461 = 0.3080260303687636
0.3080260303687636 x 100 = 30.8%