The interest tax on bank deposits is 5%. A person deposits 20,000 yuan for one year with an annual interest rate of 2.25%.
银行存款的利息税为5%，某人存2万元，定期一年，年利率为2.25%，到期时可取出本利共多少元？
<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 * 0.0225 * 1 * (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>