16.77% is the change from 668 to 780
Calculation steps:
[( 780 - 668 ) ÷ 668] x 100 = 16.77%
Formula
Percentage change = [(780 - 668) / 668] x 100
Subtract the new number by the original number
780 - 668 = 112
112 ÷ 668 = 0.16766467065868262
0.16766467065868262 x 100 = 16.77%