113.37% is the change from 389 to 830
Calculation steps:
[( 830 - 389 ) ÷ 389] x 100 = 113.37%
Formula
Percentage change = [(830 - 389) / 389] x 100
Subtract the new number by the original number
830 - 389 = 441
441 ÷ 389 = 1.1336760925449871
1.1336760925449871 x 100 = 113.37%