21.82% is the change from 330 to 402
Calculation steps:
[( 402 - 330 ) ÷ 330] x 100 = 21.82%
Formula
Percentage change = [(402 - 330) / 330] x 100
Subtract the new number by the original number
402 - 330 = 72
72 ÷ 330 = 0.21818181818181817
0.21818181818181817 x 100 = 21.82%