-1.16% is the change from 779 to 770
Calculation steps:
[( 770 - 779 ) ÷ 779] x 100 = -1.16%
Formula
Percentage change = [(770 - 779) / 779] x 100
Subtract the new number by the original number
770 - 779 = -9
-9 ÷ 779 = -0.011553273427471117
-0.011553273427471117 x 100 = -1.16%