111.73% is the change from 392 to 830
Calculation steps:
[( 830 - 392 ) ÷ 392] x 100 = 111.73%
Formula
Percentage change = [(830 - 392) / 392] x 100
Subtract the new number by the original number
830 - 392 = 438
438 ÷ 392 = 1.1173469387755102
1.1173469387755102 x 100 = 111.73%