When I was considering what to do with my $$10,000$ lottery winnings, my broker suggested that I invest half of it in gold, the value of which was growing by $8\%$ per year, and the other half in certificates of deposit $($CDs$),$ which were yielding $5\%$ per year, compounded every $6$ months. Assuming that these rates are sustained, how much will my investment be worth in $11$ years? $($Round your answer to the nearest cent.$)$following chart shows monthly figures for Apple stock in $2010.$

The graph contains a series of $12$ points connected by curves. The curves and the approximate points they connect are as follows.

The curves start at $($Jan$-10,211\mathrm{.}98),$

go down and right to $($Feb$-10,195\mathrm{.}46),$

go up and right to $($Mar$-10,218\mathrm{.}95),$

go up and right to $($Apr$-10,235\mathrm{.}97),$

go down and right to $($May$-10,235\mathrm{.}86),$

go up and right to $($Jun$-10,255\mathrm{.}96),$

go down and right to $($Jul$-10,246\mathrm{.}94),$

go up and right to $($Aug$-10,260\mathrm{.}09),$

go down and right to $($Sep$-10,258\mathrm{.}77),$

go up and right to $($Oct$-10,294\mathrm{.}07),$

go up and right to $($Nov$-10,317\mathrm{.}13),$

and go up and right to stop at $($Dec$-10,317\mathrm{.}44).$

Marked are the following points on the chart.

Jan. $10$ Feb. $10$ Mar. $10$ Apr. $10$ May $10$ June $10$

$211\mathrm{.}98195\mathrm{.}46218\mathrm{.}95235\mathrm{.}97235\mathrm{.}86255\mathrm{.}96$

July $10$ Aug. $10$ Sep. $10$ Oct. $10$ Nov. $10$ Dec. $10$

$246\mathrm{.}94260\mathrm{.}09258\mathrm{.}77294\mathrm{.}07317\mathrm{.}13317\mathrm{.}44$

Calculate to the nearest $0\mathrm{.}01\%$ your monthly percentage return $($on a simple interest basis$)$ if you had bought Apple stock in June and sold in October.