23.78% is the change from 328 to 406
Calculation steps:
[( 406 - 328 ) ÷ 328] x 100 = 23.78%
Formula
Percentage change = [(406 - 328) / 328] x 100
Subtract the new number by the original number
406 - 328 = 78
78 ÷ 328 = 0.23780487804878048
0.23780487804878048 x 100 = 23.78%