-86.43% is the change from 582 to 79
Calculation steps:
[( 79 - 582 ) ÷ 582] x 100 = -86.43%
Formula
Percentage change = [(79 - 582) / 582] x 100
Subtract the new number by the original number
79 - 582 = -503
-503 ÷ 582 = -0.8642611683848798
-0.8642611683848798 x 100 = -86.43%