-42.93% is the change from 580 to 331
Calculation steps:
[( 331 - 580 ) ÷ 580] x 100 = -42.93%
Formula
Percentage change = [(331 - 580) / 580] x 100
Subtract the new number by the original number
331 - 580 = -249
-249 ÷ 580 = -0.42931034482758623
-0.42931034482758623 x 100 = -42.93%