25.04% is the change from 671 to 839
Calculation steps:
[( 839 - 671 ) ÷ 671] x 100 = 25.04%
Formula
Percentage change = [(839 - 671) / 671] x 100
Subtract the new number by the original number
839 - 671 = 168
168 ÷ 671 = 0.2503725782414307
0.2503725782414307 x 100 = 25.04%