Xiaoyun deposits 3,000 yuan in the bank for a period of 2 years. If the annual interest rate is calculated at 2.43%, the interest tax is 5%. How much after-tax interest can Xiaoyun get at maturity?
小云把3000元钱存入银行，定期2年．如果年利率按2.43%计算，利息税为5%．到期小云可得到税后利息多少元？
<gadget id="calculator">2.43 / 100</gadget>
<output>0.0243</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 * 0.0243 * 2 * (4/5)</gadget>
<output>116.64</output>

<result>116.64</result>