An investor has two investment choices. First, he/she could buy 100 shares of stock for $50 per share. Second, he/she could buy 1000 European call options on the stock with a strike price of $47 for $5 per option. For second choice to give a better outcome than the first choice at option maturity, the stock price must be above a certain level. How much is this level? Note: In your answer, (1) only input numerical value with 2 decimal points, and (2) do not input unit or symbol, such as $", km, and %. For example, if your answer is 22.20 dollar, present your answer as 22.20, but not $22.20. An investor short sells 200 shares at $86 each in March. In April, the stock pays a dividend of $5 per share. In May, the investor closes the position by buying back the shares at $77 each. Calculate the profit or loss (i.e., ignores the time value of money). Note: In your answer, (1) only input numerical value with 2 decimal points, and (2) do not input unit or symbol, such as "$", km", and "%". For example, if your answer is 22.20 dollar, present your answer as 22.20, but not $22.20