18.53% is the change from 680 to 806
Calculation steps:
[( 806 - 680 ) ÷ 680] x 100 = 18.53%
Formula
Percentage change = [(806 - 680) / 680] x 100
Subtract the new number by the original number
806 - 680 = 126
126 ÷ 680 = 0.18529411764705883
0.18529411764705883 x 100 = 18.53%