25.88% is the change from 680 to 856
Calculation steps:
[( 856 - 680 ) ÷ 680] x 100 = 25.88%
Formula
Percentage change = [(856 - 680) / 680] x 100
Subtract the new number by the original number
856 - 680 = 176
176 ÷ 680 = 0.25882352941176473
0.25882352941176473 x 100 = 25.88%