38.72% is the change from 328 to 455
Calculation steps:
[( 455 - 328 ) ÷ 328] x 100 = 38.72%
Formula
Percentage change = [(455 - 328) / 328] x 100
Subtract the new number by the original number
455 - 328 = 127
127 ÷ 328 = 0.3871951219512195
0.3871951219512195 x 100 = 38.72%