6555.56% is the change from 9 to 599
Calculation steps:
[( 599 - 9 ) ÷ 9] x 100 = 6555.56%
Formula
Percentage change = [(599 - 9) / 9] x 100
Subtract the new number by the original number
599 - 9 = 590
590 ÷ 9 = 65.55555555555556
65.55555555555556 x 100 = 6555.56%