If your account has only $3,000, the maximum allowable loss is $3,000-2,000 = 1 1,000 (when the interest of your funds is less than the maintenance margin of 2,000, it will be balanced), and because your position is short, there is only risk when the price rises. For every price increase of 1 cent/bushel, you will lose $50, so you can only lose 1000/50=20 cents at most. For every drop 1 cent/bushel, you earn $50. To withdraw $65,438+0,500 from your account, you must earn more money than maintaining the deposit, that is, $500, that is, 65,438+00 cents.

So you can withdraw $65,438+0,500 when the price drops to 240 cents/bushel, or $65,438+0,500 when the price rises to 270 cents/bushel.