Question $3(5$ points$)$

Suppose you believe that Apple's stock price is going to increase from its current level of $ $72\mathrm{.}41$ sometime during the next $5$ months. For $ $621\mathrm{.}09$ you could buy a $5-$month call option giving you the right to buy $100$ shares at a price of $ $75$ per share. If you bought a $100-$share contract for $ $621\mathrm{.}09$ and Apple's stock price actually changed to $ $85\mathrm{.}24$ at the end of $5$ months, and after behaving economically rationally on your decision to exercise the option, your net profit $($or loss$)$ would be $\_\_\_\_\_\_?$ Show your answer to the nearest $\mathrm{.}01.$ Do not use $ or $+$ sign in your answer. However, use a $-$ sign if you lose money on the contract.