Uncle Zhang bought 4,000 yuan of national debt for 3 years, and the annual interest rate is 4.76%. How much interest can he get after maturity?
张叔叔买了4000元的国债3年，年利率是4.76%，到期后他能得到多少元的利息．
<gadget id="calculator">4.76 / 100</gadget>
<output>0.0476</output>

<gadget id="calculator">4_000 * 3 * 0.0476</gadget>
<output>571.2</output>

<result>571.2</result>