You went for a short sale of 2,000 shares. The price was $50 per share when you initiate the contract. This initial margin rate is 50% and the maintenance margin requirement of 30%. Suppose that the stock price changes is as in table 1 (price increase) and table 2 (price decrease) below. a. What is the Initial Margin and the Price Margin call for both cases? b. Fill in the two tables