Uncle Li deposits 100,000 yuan in the bank for three years, with an annual interest rate of 4.25%. How much interest can you get when it matures in three years? (After maturity, interest tax shall be paid at 5% of the interest)
李叔叔存入银行10万元，定期三年，年利率为4.25%．三年后到期能得到多少利息？(到期后要按利息的5%缴纳利息税)
<gadget id="calculator">10 * 10_000</gadget>
<output>100_000</output>

<gadget id="calculator">4.25 / 100</gadget>
<output>0.0425</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">100_000 * 0.0425 * (19/20) * 3</gadget>
<output>12_112.5</output>

<result>12_112.5</result>