30.1% is the change from 671 to 873
Calculation steps:
[( 873 - 671 ) ÷ 671] x 100 = 30.1%
Formula
Percentage change = [(873 - 671) / 671] x 100
Subtract the new number by the original number
873 - 671 = 202
202 ÷ 671 = 0.30104321907600595
0.30104321907600595 x 100 = 30.1%