-93.28% is the change from 580 to 39
Calculation steps:
[( 39 - 580 ) ÷ 580] x 100 = -93.28%
Formula
Percentage change = [(39 - 580) / 580] x 100
Subtract the new number by the original number
39 - 580 = -541
-541 ÷ 580 = -0.9327586206896552
-0.9327586206896552 x 100 = -93.28%