668% is the change from 100 to 768
Calculation steps:
[( 768 - 100 ) ÷ 100] x 100 = 668%
Formula
Percentage change = [(768 - 100) / 100] x 100
Subtract the new number by the original number
768 - 100 = 668
668 ÷ 100 = 6.68
6.68 x 100 = 668%
Example