Aunt Li deposited 3,000 yuan in the bank for a fixed period of 5 years. When it expires, she will get back the interest and principal of 3,410.4 yuan. Find the annual interest rate.
李阿姨把3000元人民币存入银行，存定期5年，到期时她取回利息和本金共3410.4元，求年利率．
<gadget id="calculator">3_410.4 - 3_000</gadget>
<output>410.4</output>

<gadget id="calculator">410.4 / 3_000 / 5</gadget>
<output>0.02736</output>

<result>0.02736</result>