103.05% is the change from 394 to 800
Calculation steps:
[( 800 - 394 ) ÷ 394] x 100 = 103.05%
Formula
Percentage change = [(800 - 394) / 394] x 100
Subtract the new number by the original number
800 - 394 = 406
406 ÷ 394 = 1.0304568527918783
1.0304568527918783 x 100 = 103.05%