-50.52% is the change from 580 to 287
Calculation steps:
[( 287 - 580 ) ÷ 580] x 100 = -50.52%
Formula
Percentage change = [(287 - 580) / 580] x 100
Subtract the new number by the original number
287 - 580 = -293
-293 ÷ 580 = -0.5051724137931034
-0.5051724137931034 x 100 = -50.52%