54.27% is the change from 328 to 506
Calculation steps:
[( 506 - 328 ) ÷ 328] x 100 = 54.27%
Formula
Percentage change = [(506 - 328) / 328] x 100
Subtract the new number by the original number
506 - 328 = 178
178 ÷ 328 = 0.5426829268292683
0.5426829268292683 x 100 = 54.27%