-0.39% is the change from 768 to 765
Calculation steps:
[( 765 - 768 ) ÷ 768] x 100 = -0.39%
Formula
Percentage change = [(765 - 768) / 768] x 100
Subtract the new number by the original number
765 - 768 = -3
-3 ÷ 768 = -0.00390625
-0.00390625 x 100 = -0.39%