Teacher Zhang deposited 2,000 yuan in education savings (no tax) in the bank for two years, and withdrawn a total of 2,176 yuan after the maturity date. Calculate the annual interest rate.
张老师在银行存了2000元教育储蓄(不纳税)，定期两年，到期后共取出2176元，求年利率．
<gadget id="calculator">2_176 - 2_000</gadget>
<output>176</output>

<gadget id="calculator">2 * 2_000</gadget>
<output>4_000</output>

<gadget id="calculator">176 / 4_000</gadget>
<output>11/250 = around 0.044</output>

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