19.51% is the change from 328 to 392
Calculation steps:
[( 392 - 328 ) ÷ 328] x 100 = 19.51%
Formula
Percentage change = [(392 - 328) / 328] x 100
Subtract the new number by the original number
392 - 328 = 64
64 ÷ 328 = 0.1951219512195122
0.1951219512195122 x 100 = 19.51%