Dad deposited 8,000 yuan in the bank on October 8 last year for one year. If the annual interest rate is 2.25%, how much tax should be paid when it matures?
爸爸去年10月8日把8000元存入银行，定期一年，如果年利率是2.25%，到期时应纳税多少元？
<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">8_000 * 0.0225 * 1 * (1/20)</gadget>
<output>9</output>

<result>9</result>