An investor purchases 130 shares of a stock at $12.25 per share. After 120 days, the investor sells the stock for $17.5 per share. Using the commission schedule below find the annual rate of interest earned by this investment. Explain your answer and express the answer as a percentage, correct to three decimal places.

Principal	Commission
Under $2000	$25 + 1.4% of principal
$2000 - $7000	$40 + 1.2% of principal
Over $7000	$100 + 0.8% of principal

An investor purchases 130 shares of a stock at $12.25 per share. After 120 days, the investor sells the stock for $17.5 per share. Using the commission schedule below find the annual rate of interest earned by this investment. Explain your answer and express the answer as a percentage, correct to three decimal places. Principal Commission Under $2000 $25 + 1.4% of principal $2000 - $7000 $40 + 1.2% of principal Over $7000 $100+ 0.8% of principal For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BI S Paragraph Arial 14px Ix III