Uncle Li deposits 50,000 yuan in the bank, fixed for 4 years, with an annual interest rate of 2%, how much yuan can Uncle Li get back at maturity (interest tax 20%).
李叔叔在银行存款50000元，定期4年，年利率2%，到期李叔叔一共可拿回多少元(利息税20%)．
<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</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">50_000 * (1/50) * 4 * (4/5)</gadget>
<output>3_200</output>

<gadget id="calculator">50_000 + 3_200</gadget>
<output>53_200</output>

<result>53_200</result>