Uncle Zhang deposits 3,000 yuan in the bank for a period of three years, with an annual interest rate of 3.24%. (Interest is subject to 20% interest tax)
张大伯在银行存入3000元钱，定期三年，年利率3.24%，到期后能取得本息共多少元．(利息要缴纳20%的利息税)
<gadget id="calculator">3.24 / 100</gadget>
<output>0.0324</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">3_000 * 0.0324 * 3 * (4/5)</gadget>
<output>233.28</output>

<gadget id="calculator">3_000 + 233.28</gadget>
<output>3_233.28</output>

<result>3_233.28</result>