28.18% is the change from 330 to 423
Calculation steps:
[( 423 - 330 ) ÷ 330] x 100 = 28.18%
Formula
Percentage change = [(423 - 330) / 330] x 100
Subtract the new number by the original number
423 - 330 = 93
93 ÷ 330 = 0.2818181818181818
0.2818181818181818 x 100 = 28.18%