Problem $4-01$

You purchase $90$ shares for $$70$ a share $($$$6,300),$ and after a year the price rises to $$80.$ Calculate the percentage return on your investment if you bought the stock on margin and the margin requirement was $($ignore commissions, dividends, and interest expense$)$:

a$.25$ percent. Round your answer to one decimal place.

$\%$

b$.60$ percent. Round your answer to one decimal place.

$\%$

c$.75$ percent. Round your answer to one decimal place.

$\%$