-98.51% is the change from 603 to 9
Calculation steps:
[( 9 - 603 ) ÷ 603] x 100 = -98.51%
Formula
Percentage change = [(9 - 603) / 603] x 100
Subtract the new number by the original number
9 - 603 = -594
-594 ÷ 603 = -0.9850746268656716
-0.9850746268656716 x 100 = -98.51%