-50.69% is the change from 580 to 286
Calculation steps:
[( 286 - 580 ) ÷ 580] x 100 = -50.69%
Formula
Percentage change = [(286 - 580) / 580] x 100
Subtract the new number by the original number
286 - 580 = -294
-294 ÷ 580 = -0.506896551724138
-0.506896551724138 x 100 = -50.69%