-1.03% is the change from 779 to 771
Calculation steps:
[( 771 - 779 ) ÷ 779] x 100 = -1.03%
Formula
Percentage change = [(771 - 779) / 779] x 100
Subtract the new number by the original number
771 - 779 = -8
-8 ÷ 779 = -0.010269576379974325
-0.010269576379974325 x 100 = -1.03%