Mr. Wang deposits 30,000 yuan in the bank for two years, with an annual interest rate of 3.24%. After the maturity, he can withdraw the principal and interest. (Interest on deposits is taxed at a rate of 5%)
王老师把30000元存入银行，定期两年，年利率3.24%，到期后他可取出本金和利息多少元．(存款的利息按5%的税率纳税)
<gadget id="calculator">3.24 / 100</gadget>
<output>0.0324</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">30_000 * 0.0324 * 2 * (19/20)</gadget>
<output>1_846.8</output>

<gadget id="calculator">30_000 + 1_846.8</gadget>
<output>31_846.8</output>

<result>31_846.8</result>