33.82% is the change from 680 to 910
Calculation steps:
[( 910 - 680 ) ÷ 680] x 100 = 33.82%
Formula
Percentage change = [(910 - 680) / 680] x 100
Subtract the new number by the original number
910 - 680 = 230
230 ÷ 680 = 0.3382352941176471
0.3382352941176471 x 100 = 33.82%