a$.$ Refer to the table below and locate the E$-$Mini contract on the Standard & Poor's $500$ Index. If the margin requirement is $10\%$ of the futures price times the multiplier of $$50,$ how much must you deposit with your broker to buy one December contract?

Note: Round your answer to $2$ decimal places.

Required margin

b$.$ If the December futures price increases to $3,800,$ what percentage return will you earn on your investment?

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

Percentage return $$

If the December futures price falls by $1$h$,$ what is the percentage gain or loss on your imestment? Note: Input the amount as a positive value. Use the dropdown to indicate whether there is a ga intermediate calculations. Round your answer to a whole number.

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Mercentage gain

fercentage kss