109.6% is the change from 396 to 830
Calculation steps:
[( 830 - 396 ) ÷ 396] x 100 = 109.6%
Formula
Percentage change = [(830 - 396) / 396] x 100
Subtract the new number by the original number
830 - 396 = 434
434 ÷ 396 = 1.095959595959596
1.095959595959596 x 100 = 109.6%