-14.06% is the change from 768 to 660
Calculation steps:
[( 660 - 768 ) ÷ 768] x 100 = -14.06%
Formula
Percentage change = [(660 - 768) / 768] x 100
Subtract the new number by the original number
660 - 768 = -108
-108 ÷ 768 = -0.140625
-0.140625 x 100 = -14.06%