-11.72% is the change from 768 to 678
Calculation steps:
[( 678 - 768 ) ÷ 768] x 100 = -11.72%
Formula
Percentage change = [(678 - 768) / 768] x 100
Subtract the new number by the original number
678 - 768 = -90
-90 ÷ 768 = -0.1171875
-0.1171875 x 100 = -11.72%