Please explain how I can get the right answers. The answers in the boxes are the right ones, thank you.

(Click the icon to view the margin requirements on long positions.) (Click the icon to view the margin requirements on short positions.) Margin Requirements on Long Positions a. He short sells the stock and repurchases the borrowed shares at $35 per share. b. He buys the stock and sells the stock at $45 per share. c. He short sells the stock and repurchases the borrowed shares at $15 per share. d. He buys the stock and sells the stock at $25 per share. a. He short sells the stock and repurchases the borrowed shares at $35 per share. The percentage gain or loss that Felix realizes is percent. (Round to two decimal places.) Margin Requirements on Short Positions b. He buys the stock and sells the stock at $45 per share. The percentage gain or loss that Felix realizes is percent. (Round to two decimal places.) c. He short sells the stock and repurchases the borrowed shares at $15 per share. The percentage gain or loss that Felix realizes is percent. (Round to two decimal places.) d. He buys the stock and sells the stock at $25 per share. The percentage gain or loss that Felix realizes is percent. (Round to the nearest dollar.) (Click the icon to view the margin requirements on long positions.) (Click the icon to view the margin requirements on short positions.) Margin Requirements on Long Positions a. He short sells the stock and repurchases the borrowed shares at $35 per share. b. He buys the stock and sells the stock at $45 per share. c. He short sells the stock and repurchases the borrowed shares at $15 per share. d. He buys the stock and sells the stock at $25 per share. a. He short sells the stock and repurchases the borrowed shares at $35 per share. The percentage gain or loss that Felix realizes is percent. (Round to two decimal places.) Margin Requirements on Short Positions b. He buys the stock and sells the stock at $45 per share. The percentage gain or loss that Felix realizes is percent. (Round to two decimal places.) c. He short sells the stock and repurchases the borrowed shares at $15 per share. The percentage gain or loss that Felix realizes is percent. (Round to two decimal places.) d. He buys the stock and sells the stock at $25 per share. The percentage gain or loss that Felix realizes is percent. (Round to the nearest dollar.)