15.49% is the change from 284 to 328
Calculation steps:
[( 328 - 284 ) ÷ 284] x 100 = 15.49%
Formula
Percentage change = [(328 - 284) / 284] x 100
Subtract the new number by the original number
328 - 284 = 44
44 ÷ 284 = 0.15492957746478872
0.15492957746478872 x 100 = 15.49%