-96.52% is the change from 603 to 21
Calculation steps:
[( 21 - 603 ) ÷ 603] x 100 = -96.52%
Formula
Percentage change = [(21 - 603) / 603] x 100
Subtract the new number by the original number
21 - 603 = -582
-582 ÷ 603 = -0.9651741293532339
-0.9651741293532339 x 100 = -96.52%