Dad deposits 80% of the year-end bonus of 7,000 yuan in the bank. If the annual interest rate of two-year lump sum deposit and withdrawal is 2.7%, how much interest should he get after maturity?
爸爸把7000元年终奖的80%存入银行，如果按二年期整存整取的年利率2.7%计算，到期后应得利息多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2.7 / 100</gadget>
<output>0.027</output>

<gadget id="calculator">7_000 * (4/5) * 0.027 * 2</gadget>
<output>302.4</output>

<result>302.4</result>