Xiao Le deposits 500 yuan in the bank for a period of two years. After the term expires, he can get back 544 yuan. What is the annual interest rate of this time deposit?
小乐将500元钱存入银行，定期两年，期满后，可取回544元，这种定期存款的年利率是多少．
<gadget id="calculator">544 - 500</gadget>
<output>44</output>

<gadget id="calculator">500 * 2</gadget>
<output>1_000</output>

<gadget id="calculator">44 / 1_000</gadget>
<output>11/250 = around 0.044</output>

<result>11/250 = around 0.044</result>