3.45% is the change from 319 to 330
Calculation steps:
[( 330 - 319 ) ÷ 319] x 100 = 3.45%
Formula
Percentage change = [(330 - 319) / 319] x 100
Subtract the new number by the original number
330 - 319 = 11
11 ÷ 319 = 0.034482758620689655
0.034482758620689655 x 100 = 3.45%