3.74% is the change from 321 to 333
Calculation steps:
[( 333 - 321 ) ÷ 321] x 100 = 3.74%
Formula
Percentage change = [(333 - 321) / 321] x 100
Subtract the new number by the original number
333 - 321 = 12
12 ÷ 321 = 0.037383177570093455
0.037383177570093455 x 100 = 3.74%