104.02% is the change from 398 to 812
Calculation steps:
[( 812 - 398 ) ÷ 398] x 100 = 104.02%
Formula
Percentage change = [(812 - 398) / 398] x 100
Subtract the new number by the original number
812 - 398 = 414
414 ÷ 398 = 1.0402010050251256
1.0402010050251256 x 100 = 104.02%