23.24% is the change from 680 to 838
Calculation steps:
[( 838 - 680 ) ÷ 680] x 100 = 23.24%
Formula
Percentage change = [(838 - 680) / 680] x 100
Subtract the new number by the original number
838 - 680 = 158
158 ÷ 680 = 0.2323529411764706
0.2323529411764706 x 100 = 23.24%