can't figure out part C.

De Trader opens a brokerage account and purchases 200 shares of Internet Dreams at $44 per share She borrows $4,150 from her broker to help pay for the purchase. The interest rate on the loan is 10% a. What is the margin in De's account when she first purchases the stock? Margin 4650 b-1. If the share price falls to $34 per share by the end of the year, what is the remaining margin in her account (Round your answer to 2 decimal places.) Remaining margin 32.87 % b-2. If the maintenance margin requirement is 30%, will she receive a margin call? Yes 0 No What is the rate of return on her investment? (Negative value should be indicated by a minus sign.Round your answer to 2 decimal places.) c. Rate of return