On November $15,$ you sold ten futures contracts for $100,000$ cad each at a rate of

USD$/$CAD $0\mathrm{.}75.$ The subsequent settlement prices are shown in the table below.

November $1617181920232425$

Future

Rate

$0\mathrm{.}740\mathrm{.}730\mathrm{.}740\mathrm{.}760\mathrm{.}770\mathrm{.}780\mathrm{.}790\mathrm{.}81$

a$.$ What are the daily cash flows from marking to market?

b$.$ What is the total cash flow from marking to market $($ignoring discounting$)?$

c$.$ If you deposit USD $75,000$ into your margin account, and your broker

requires USD $50,000$ as maintenance margin, when will you receive a

margin call and how much will you have to deposit?