-97.84% is the change from 603 to 13
Calculation steps:
[( 13 - 603 ) ÷ 603] x 100 = -97.84%
Formula
Percentage change = [(13 - 603) / 603] x 100
Subtract the new number by the original number
13 - 603 = -590
-590 ÷ 603 = -0.978441127694859
-0.978441127694859 x 100 = -97.84%