-87.46% is the change from 582 to 73
Calculation steps:
[( 73 - 582 ) ÷ 582] x 100 = -87.46%
Formula
Percentage change = [(73 - 582) / 582] x 100
Subtract the new number by the original number
73 - 582 = -509
-509 ÷ 582 = -0.8745704467353952
-0.8745704467353952 x 100 = -87.46%