Aunt Li deposited 5,000 yuan in the bank for two years, with an annual interest rate of 2.43%. How much will she get for the principal and after-tax interest at maturity?
李阿姨将5000元钱存入银行，定期二年，年利率是2.43%．到期时，她可得到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">5_000 * 0.0243 * 2 * (4/5)</gadget>
<output>194.4</output>

<gadget id="calculator">5_000 + 194.4</gadget>
<output>5_194.4</output>

<result>5_194.4</result>