25.15% is the change from 680 to 851
Calculation steps:
[( 851 - 680 ) ÷ 680] x 100 = 25.15%
Formula
Percentage change = [(851 - 680) / 680] x 100
Subtract the new number by the original number
851 - 680 = 171
171 ÷ 680 = 0.2514705882352941
0.2514705882352941 x 100 = 25.15%