52.74% is the change from 328 to 501
Calculation steps:
[( 501 - 328 ) ÷ 328] x 100 = 52.74%
Formula
Percentage change = [(501 - 328) / 328] x 100
Subtract the new number by the original number
501 - 328 = 173
173 ÷ 328 = 0.5274390243902439
0.5274390243902439 x 100 = 52.74%