113.92% is the change from 388 to 830
Calculation steps:
[( 830 - 388 ) ÷ 388] x 100 = 113.92%
Formula
Percentage change = [(830 - 388) / 388] x 100
Subtract the new number by the original number
830 - 388 = 442
442 ÷ 388 = 1.1391752577319587
1.1391752577319587 x 100 = 113.92%