-98.8% is the change from 583 to 7
Calculation steps:
[( 7 - 583 ) ÷ 583] x 100 = -98.8%
Formula
Percentage change = [(7 - 583) / 583] x 100
Subtract the new number by the original number
7 - 583 = -576
-576 ÷ 583 = -0.9879931389365352
-0.9879931389365352 x 100 = -98.8%