28.59% is the change from 668 to 859
Calculation steps:
[( 859 - 668 ) ÷ 668] x 100 = 28.59%
Formula
Percentage change = [(859 - 668) / 668] x 100
Subtract the new number by the original number
859 - 668 = 191
191 ÷ 668 = 0.28592814371257486
0.28592814371257486 x 100 = 28.59%