Peter buys 100 shares of BTC at $35 a share and 200 shares of Cable Bahamas shares at $40 a share. He buys on margin and the broker charges interest of 10 percent on the loan.

a. If the margin requirement is 5.5 percent, what is the maximum amount he can borrow?

b. If he buys the stocks using the borrowed money and holds the securities for a year, how much interest must he pay?

c. If after a year he sells BTC for $29 a share and Cable Bahamas for $32 a share, how much did he lose on his investment?

d. What is the percentage loss on the funds he invested if the interest payment is included in the calculation?