18.32% is the change from 666 to 788
Calculation steps:
[( 788 - 666 ) ÷ 666] x 100 = 18.32%
Formula
Percentage change = [(788 - 666) / 666] x 100
Subtract the new number by the original number
788 - 666 = 122
122 ÷ 666 = 0.1831831831831832
0.1831831831831832 x 100 = 18.32%