-0.39% is the change from 779 to 776
Calculation steps:
[( 776 - 779 ) ÷ 779] x 100 = -0.39%
Formula
Percentage change = [(776 - 779) / 779] x 100
Subtract the new number by the original number
776 - 779 = -3
-3 ÷ 779 = -0.0038510911424903724
-0.0038510911424903724 x 100 = -0.39%