8555.56% is the change from 9 to 779
Calculation steps:
[( 779 - 9 ) ÷ 9] x 100 = 8555.56%
Formula
Percentage change = [(779 - 9) / 9] x 100
Subtract the new number by the original number
779 - 9 = 770
770 ÷ 9 = 85.55555555555556
85.55555555555556 x 100 = 8555.56%