Mom deposits 1,000 yuan in the bank for 2 years on a regular basis, with an annual interest rate of 2.43%. When it matures, she can get back the total amount of principal and after-tax interest. (Interest tax is calculated at 5%).
妈妈把1000元存入银行，定期2年，年利率是2.43%，到期时，她共可取回本金和税后利息一共多少元．(利息税按5%计算)．
<gadget id="calculator">2.43 / 100</gadget>
<output>0.0243</output>

<gadget id="calculator">1_000 * 0.0243 * 2</gadget>
<output>48.6</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">48.6 * (19/20)</gadget>
<output>46.17</output>

<gadget id="calculator">1_000 + 46.17</gadget>
<output>1_046.17</output>

<result>1_046.17</result>