Old Economy Traders opened an account to short$-$sell $1,000$ shares of Internet Dreams at $$55$ per share. The initial margin

requirement was $50\%.($The margin account pays no interest.$)$ A year later, the price of Internet Dreams has risen from $$55$ to $$62\mathrm{.}50,$

and the stock has paid a dividend of $$2\mathrm{.}20$ per share.

Required:

a$.$ What is the remaining margin in the account?

b$-1.$ What is the margin on the short position? $($Round your answer to $2$ decimal places.$)$

b$-2.$ If the maintenance margin requirement is $30\%,$ will Old Economy receive a margin call?

c$.$ What is the rate of return on the investment? $($Negative value should be indicated by a minus sign. Round your answer to $2$

decimal places.$)$