> Stock investment question, please help me :)?

Stock investment question, please help me :)?

Posted at: 2014-12-05 
That is not the right question. The correct one is Why aren't you doing your own homework?

This is the questions:

Through a margin account, Candy short sells 200 shares of Z stock for $50 per share. The initial margin requirement is 45% and the maintenance margin requirement is 20%.

1.If the Z stock subsequently rises in price to $58 per share, what is the actual margin in Candy's account?Will Candy receive a margin call?

2.If the Z stock subsequently falls in price to $42 per share, what is the actual margin in Candy's account? Is Candy's account restricted or unrestricted?

3. Calculate Candy's rate of return in parts 1 and 2, assuming that the short loan was flat but the initial margin deposit earned interest at a rate of 8%, and the prices of $58 and $42 were observed after one year during which the firm did not pay any dividends.

I can calculate 1 and 2, the answer are 25% and 72.61% but how to calculate question no.3?

In class, the teacher told that we should calculate rebate rate but this question doesn't give any rebate rate.

Please show me the step to calculate

Thank you