Oid Economy Traders opened an account to short$-$sell $1,000$ shares of Internet Dreams at $$40$ per share. The initial margin requirement was $50\%.$ The margin account pays no intarest.$)$ A year later, the price of internet Dreams has risen from $$40$ to $550,$ and the stock has paid a dividend or $$2$ per share.

Aequired:

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

Ramrnaining margin

b$-1.$ What is the margin on the shart position?

Short margin

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

Yes $$

No $$

c$.$ What is the rete of return an the investment? $($Negative value should be indicated by a minus sign.$)$