-0.13% is the change from 769 to 768
Calculation steps:
[( 768 - 769 ) ÷ 769] x 100 = -0.13%
Formula
Percentage change = [(768 - 769) / 769] x 100
Subtract the new number by the original number
768 - 769 = -1
-1 ÷ 769 = -0.0013003901170351106
-0.0013003901170351106 x 100 = -0.13%