b$)$Suppose you sell the stock at a price of $$62.$ What is your return? What would your return have been had you purchased the stock without margin? What if the stock price is $$46$ when you sell the stock? return $=$ selling stock value $-$ purchase stock value $/$ deposit amount...

$($$$62275)-\frac{\text{\$}53275}{\text{\$}}8000$

$=$$$2,\frac{475}{\text{\$}}8,000=0\mathrm{.}309375=30\mathrm{.}9375\%$

c$)$ assuming the initial margin requirement is $70$ percent. Does this suggest a relationship between the initial margin and returns?