32.73% is the change from 330 to 438
Calculation steps:
[( 438 - 330 ) ÷ 330] x 100 = 32.73%
Formula
Percentage change = [(438 - 330) / 330] x 100
Subtract the new number by the original number
438 - 330 = 108
108 ÷ 330 = 0.32727272727272727
0.32727272727272727 x 100 = 32.73%