Now the interest rate of the 3-year fixed deposit is 2.70%, and 20% of the interest tax will be deducted after the maturity. Dad deposits 1,000 yuan for the 3-year interest, how much can he withdraw after the maturity.
现在3年定期存款利率是2.70%，到期后还要扣20%的利息税，爸爸存1000元的3年利息，到期后可以取出多少元．
<gadget id="calculator">2.7 / 100</gadget>
<output>0.027</output>

<gadget id="calculator">1_000 * 0.027 * 3</gadget>
<output>81</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">81 * (4/5)</gadget>
<output>324/5 = around 64.8</output>

<gadget id="calculator">(324/5) + 1_000</gadget>
<output>5_324/5 = around 1_064.8</output>

<result>5_324/5 = around 1_064.8</result>