-99.83% is the change from 603 to 1
Calculation steps:
[( 1 - 603 ) ÷ 603] x 100 = -99.83%
Formula
Percentage change = [(1 - 603) / 603] x 100
Subtract the new number by the original number
1 - 603 = -602
-602 ÷ 603 = -0.9983416252072969
-0.9983416252072969 x 100 = -99.83%