-96.68% is the change from 602 to 20
Calculation steps:
[( 20 - 602 ) ÷ 602] x 100 = -96.68%
Formula
Percentage change = [(20 - 602) / 602] x 100
Subtract the new number by the original number
20 - 602 = -582
-582 ÷ 602 = -0.9667774086378738
-0.9667774086378738 x 100 = -96.68%