98.03% is the change from 406 to 804
Calculation steps:
[( 804 - 406 ) ÷ 406] x 100 = 98.03%
Formula
Percentage change = [(804 - 406) / 406] x 100
Subtract the new number by the original number
804 - 406 = 398
398 ÷ 406 = 0.9802955665024631
0.9802955665024631 x 100 = 98.03%