Margin Call $($LO$3,$ CFA$2)$ Suppose you purchase $500$ shares of stock at $$48$ per share with an initial cash investment of $$8,000.$ If your broker requires a $30$ percent maintenance margin, at what share price will you be subject to a margin call? If you want to keep your position open despite the stock price plunge, what alternatives do you have?Margin and Leverage $($LO$3,$ CFA$2)$ In Problem $13,$ suppose the call money rate is $5$ percent and you are charged a $1\mathrm{.}5$ percent premium over this rate. Calculate your return on investment for each of the following share prices one year later. Ignore dividends. Suppose instead you had purchased $$8,000$ of stock with no margin. What would your rate of return have been now?