-98.44% is the change from 577 to 9
Calculation steps:
[( 9 - 577 ) ÷ 577] x 100 = -98.44%
Formula
Percentage change = [(9 - 577) / 577] x 100
Subtract the new number by the original number
9 - 577 = -568
-568 ÷ 577 = -0.9844020797227037
-0.9844020797227037 x 100 = -98.44%