-86.25% is the change from 582 to 80
Calculation steps:
[( 80 - 582 ) ÷ 582] x 100 = -86.25%
Formula
Percentage change = [(80 - 582) / 582] x 100
Subtract the new number by the original number
80 - 582 = -502
-502 ÷ 582 = -0.8625429553264605
-0.8625429553264605 x 100 = -86.25%