18.02% is the change from 666 to 786
Calculation steps:
[( 786 - 666 ) ÷ 666] x 100 = 18.02%
Formula
Percentage change = [(786 - 666) / 666] x 100
Subtract the new number by the original number
786 - 666 = 120
120 ÷ 666 = 0.18018018018018017
0.18018018018018017 x 100 = 18.02%