26.83% is the change from 671 to 851
Calculation steps:
[( 851 - 671 ) ÷ 671] x 100 = 26.83%
Formula
Percentage change = [(851 - 671) / 671] x 100
Subtract the new number by the original number
851 - 671 = 180
180 ÷ 671 = 0.26825633383010433
0.26825633383010433 x 100 = 26.83%