Use the commission schedule from Company A shown in the table to find the annual rate of interest earned on the

investment. $($Note: commissions are rounded to the nearest cent.$)$

Principal $($Value of Stock$)$

Under $$3,000$

$$3,000$ to $$10,000$

Over $$10,000$

An investor purchases $349$ shares at $$10\mathrm{.}84$ a share, holds the stock for $32$ weeks, and then sells the stock for $$16\mathrm{.}44$ a share.

The annual rate is $\%.($Round to five decimal places.$)$