20.9% is the change from 665 to 804
Calculation steps:
[( 804 - 665 ) ÷ 665] x 100 = 20.9%
Formula
Percentage change = [(804 - 665) / 665] x 100
Subtract the new number by the original number
804 - 665 = 139
139 ÷ 665 = 0.20902255639097744
0.20902255639097744 x 100 = 20.9%