Uncle Liu deposits 20,000 yuan in the bank for one year at an annual interest rate of 2.25%, and the interest on the deposit is taxed at a rate of 5%. After the expiration, how much money can Uncle Liu get back?
刘叔叔将2万元钱存入银行，定期一年，年利率是2.25%，存款的利息要按5%的税率纳税．到期后，刘叔叔可取回多少钱？
<gadget id="calculator">2 * 10_000</gadget>
<output>20_000</output>

<gadget id="calculator">2.25 / 100</gadget>
<output>0.0225</output>

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

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">20_000 * 1 * 0.0225 * (19/20)</gadget>
<output>427.5</output>

<gadget id="calculator">20_000 + 427.5</gadget>
<output>20_427.5</output>

<result>20_427.5</result>