You have $$2,000$ that you want to invest in your classmate's start$-$up business. You believe the business idea to be great and expect to get $$4,300$ back at the end of three years. If all goes according to plan, what will the annual return on your investment be$?($Round intermediate calculations to $4$ decimal places, e$.$g$.2\mathrm{.}5125$ and final answer to $2$ decimal places, eg$.15\mathrm{.}25.)$

Expected rate of return

$\%$