-98.8% is the change from 582 to 7
Calculation steps:
[( 7 - 582 ) ÷ 582] x 100 = -98.8%
Formula
Percentage change = [(7 - 582) / 582] x 100
Subtract the new number by the original number
7 - 582 = -575
-575 ÷ 582 = -0.9879725085910653
-0.9879725085910653 x 100 = -98.8%