4.57% is the change from 328 to 343
Calculation steps:
[( 343 - 328 ) ÷ 328] x 100 = 4.57%
Formula
Percentage change = [(343 - 328) / 328] x 100
Subtract the new number by the original number
343 - 328 = 15
15 ÷ 328 = 0.04573170731707317
0.04573170731707317 x 100 = 4.57%