33.54% is the change from 328 to 438
Calculation steps:
[( 438 - 328 ) ÷ 328] x 100 = 33.54%
Formula
Percentage change = [(438 - 328) / 328] x 100
Subtract the new number by the original number
438 - 328 = 110
110 ÷ 328 = 0.3353658536585366
0.3353658536585366 x 100 = 33.54%