7288.89% is the change from 9 to 665
Calculation steps:
[( 665 - 9 ) ÷ 9] x 100 = 7288.89%
Formula
Percentage change = [(665 - 9) / 9] x 100
Subtract the new number by the original number
665 - 9 = 656
656 ÷ 9 = 72.88888888888889
72.88888888888889 x 100 = 7288.89%