48.03% is the change from 304 to 450
Calculation steps:
[( 450 - 304 ) ÷ 304] x 100 = 48.03%
Formula
Percentage change = [(450 - 304) / 304] x 100
Subtract the new number by the original number
450 - 304 = 146
146 ÷ 304 = 0.48026315789473684
0.48026315789473684 x 100 = 48.03%