19.22% is the change from 666 to 794
Calculation steps:
[( 794 - 666 ) ÷ 666] x 100 = 19.22%
Formula
Percentage change = [(794 - 666) / 666] x 100
Subtract the new number by the original number
794 - 666 = 128
128 ÷ 666 = 0.1921921921921922
0.1921921921921922 x 100 = 19.22%