$(4)$ Calculate how much money $($gain$)$ a trader will make if he$/$she pays a $$2\mathrm{.}25$ premium to buy a call option $$ with a $115$ strike price $$ on a single, $10-$year Canada bond futures contract $($$$100,000$ face value$),$ with a June $2019$ expiry, if $10-$year Canada bond yields fall by June $2017$ such that the futures price rises to $121$ by the expiry of the call option.