6777.78% is the change from 9 to 619
Calculation steps:
[( 619 - 9 ) ÷ 9] x 100 = 6777.78%
Formula
Percentage change = [(619 - 9) / 9] x 100
Subtract the new number by the original number
619 - 9 = 610
610 ÷ 9 = 67.77777777777777
67.77777777777777 x 100 = 6777.78%