19.97% is the change from 671 to 805
Calculation steps:
[( 805 - 671 ) ÷ 671] x 100 = 19.97%
Formula
Percentage change = [(805 - 671) / 671] x 100
Subtract the new number by the original number
805 - 671 = 134
134 ÷ 671 = 0.19970193740685543
0.19970193740685543 x 100 = 19.97%