-87.89% is the change from 603 to 73
Calculation steps:
[( 73 - 603 ) ÷ 603] x 100 = -87.89%
Formula
Percentage change = [(73 - 603) / 603] x 100
Subtract the new number by the original number
73 - 603 = -530
-530 ÷ 603 = -0.87893864013267
-0.87893864013267 x 100 = -87.89%