Mr. Liu deposited 8,000 yuan in the bank on June 1, 2003, for a period of 2 years. If the annual interest rate is 2.43%, how much yuan can he withdraw the principal and after-tax interest when he withdraws it at maturity?
刘老师2003年6月1日把8000元存入银行，定期2年，如果年利率为2.43%，到期取出时，他可以取出本金和税后利息共多少元？
<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">8_000 * 0.0243 * 2 * (4/5)</gadget>
<output>311.04</output>

<gadget id="calculator">8_000 + 311.04</gadget>
<output>8_311.04</output>

<result>8_311.04</result>