18.86% is the change from 668 to 794
Calculation steps:
[( 794 - 668 ) ÷ 668] x 100 = 18.86%
Formula
Percentage change = [(794 - 668) / 668] x 100
Subtract the new number by the original number
794 - 668 = 126
126 ÷ 668 = 0.18862275449101795
0.18862275449101795 x 100 = 18.86%