25.48% is the change from 671 to 842
Calculation steps:
[( 842 - 671 ) ÷ 671] x 100 = 25.48%
Formula
Percentage change = [(842 - 671) / 671] x 100
Subtract the new number by the original number
842 - 671 = 171
171 ÷ 671 = 0.2548435171385991
0.2548435171385991 x 100 = 25.48%