19.82% is the change from 671 to 804
Calculation steps:
[( 804 - 671 ) ÷ 671] x 100 = 19.82%
Formula
Percentage change = [(804 - 671) / 671] x 100
Subtract the new number by the original number
804 - 671 = 133
133 ÷ 671 = 0.19821162444113263
0.19821162444113263 x 100 = 19.82%