Xiaoxiao deposits 500 yuan of New Year's money in the bank, deposits and withdraws for three years, the annual interest rate is 4.75%, how much interest can Xiaoxiao get when it expires.
笑笑将500元压岁钱存入银行，整存整取三年，年利率是4.75%，到期时笑笑可得到利息多少元．
<gadget id="calculator">4.75 / 100</gadget>
<output>0.0475</output>

<gadget id="calculator">500 * 0.0475 * 3</gadget>
<output>71.25</output>

<result>71.25</result>