-98.49% is the change from 598 to 9
Calculation steps:
[( 9 - 598 ) ÷ 598] x 100 = -98.49%
Formula
Percentage change = [(9 - 598) / 598] x 100
Subtract the new number by the original number
9 - 598 = -589
-589 ÷ 598 = -0.9849498327759197
-0.9849498327759197 x 100 = -98.49%