115.58% is the change from 385 to 830
Calculation steps:
[( 830 - 385 ) ÷ 385] x 100 = 115.58%
Formula
Percentage change = [(830 - 385) / 385] x 100
Subtract the new number by the original number
830 - 385 = 445
445 ÷ 385 = 1.155844155844156
1.155844155844156 x 100 = 115.58%