37.2% is the change from 328 to 450
Calculation steps:
[( 450 - 328 ) ÷ 328] x 100 = 37.2%
Formula
Percentage change = [(450 - 328) / 328] x 100
Subtract the new number by the original number
450 - 328 = 122
122 ÷ 328 = 0.3719512195121951
0.3719512195121951 x 100 = 37.2%