10,000 yuan is fixed for two years, the annual interest rate is 4.5%, and the interest tax is paid at 5%. How much after-tax interest can you get after maturity?
10000元人民币定期二年，年利率是4.5%，利息税按5%缴纳，到期后可得税后利息多少元．
<gadget id="calculator">4.5 / 100</gadget>
<output>0.045</output>

<gadget id="calculator">10_000 * 0.045 * 2</gadget>
<output>900</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">900 * (1/20)</gadget>
<output>45</output>

<gadget id="calculator">900 - 45</gadget>
<output>855</output>

<result>855</result>