Calculating long and short position profits. Given that Hometown Care, Inc.’s stock is currently selling for 40 a share, calculate the amount of money that Calvin Haskins will make (or lose) on each...

Calculating long and short position profits. Given that Hometown Care, Inc.’s stock is currently selling for
40 a share, calculate the amount of money that Calvin Haskins will make (or lose) on each of the following transactions. Assume all transactions involve 100 shares of stock, and ignore brokerage commissions.

a. He short-sells the stock and then repurchases the borrowed shares at
50.

b. He buys the stock and then sells it some time later at
50.

c. He short-sells the stock and then repurchases the borrowed shares at
25.