111.03% is the change from 399 to 842
Calculation steps:
[( 842 - 399 ) ÷ 399] x 100 = 111.03%
Formula
Percentage change = [(842 - 399) / 399] x 100
Subtract the new number by the original number
842 - 399 = 443
443 ÷ 399 = 1.1102756892230576
1.1102756892230576 x 100 = 111.03%