9612.5% is the change from 8 to 777
Calculation steps:
[( 777 - 8 ) ÷ 8] x 100 = 9612.5%
Formula
Percentage change = [(777 - 8) / 8] x 100
Subtract the new number by the original number
777 - 8 = 769
769 ÷ 8 = 96.125
96.125 x 100 = 9612.5%
Example