-83.08% is the change from 603 to 102
Calculation steps:
[( 102 - 603 ) ÷ 603] x 100 = -83.08%
Formula
Percentage change = [(102 - 603) / 603] x 100
Subtract the new number by the original number
102 - 603 = -501
-501 ÷ 603 = -0.8308457711442786
-0.8308457711442786 x 100 = -83.08%