Aunt Wang deposited 4,000 yuan in the bank with a deposit period of 5 years and an annual interest rate of 2.88%. How much can she withdraw the principal and after-tax interest after maturity? (Interest is taxed at 20%)
王阿姨把4000元钱存入银行，存期5年，年利率是2.88%，到期后她可以取出本金和税后利息多少元？(利息按20%纳税)
<gadget id="calculator">2.88 / 100</gadget>
<output>0.0288</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">4_000 * 0.0288 * 5 * (4/5)</gadget>
<output>460.8</output>

<gadget id="calculator">460.8 + 4_000</gadget>
<output>4_460.8</output>

<result>4_460.8</result>