You purchase $280$ shares of $2$ nd Chance Company stock on margin at a price of $$56.$ The initial margin requirement is $70$ percent.

a$.$ Calculate the initial deposit.

Note: Do not round intermediate calculations. Round your answer to $2$ decimal places.

b$.$ What would be the return if you had purchased the stock a$)$ with margin and b$)$ without margin under the following situations? Note: A negative value should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers as a percent rounded to $2$ decimal places.

i$.$ Assume the stock price is $$70$ when you sell the stock.

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