The one-year annual interest rate of bank fixed deposits is 1.98%. According to regulations, the deposit interest is subject to 20% tax. A person deposits 10,000 yuan in a fixed-term deposit for one year in the bank. After one year, he withdraws all the principal and interest. After deducting the tax in the interest, how much is the total principal and interest he earned. (accurate to 0.01 yuan)
银行定期存款一年的年利率是1.98%，按规定，存款利息要纳税20%，某人在银行存了一万元的定期一年的存款，一年后，取出全部本金和利息，在扣除利息中的税金后，他所得本息一共多少元．(精确到0.01元)
<gadget id="calculator">1.98 / 100</gadget>
<output>0.0198</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">10_000 * 1 * 0.0198 * (4/5)</gadget>
<output>158.4</output>

<gadget id="calculator">10_000 + 158.4</gadget>
<output>10_158.4</output>

<result>10_158.4</result>