Xiao Ming deposits 1,000 yuan of New Year's money into the credit union for a period of one year, with an annual interest rate of 1.98%. After the maturity date, how much can he get back in interest after tax? (Interest tax is 5%)
小明把1000元压岁钱存入信用社，存期一年，年利率为1.98%，到期后，他能够取回税后利息多少元．(利息税为5%)
<gadget id="calculator">1.98 / 100</gadget>
<output>0.0198</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">1_000 * 0.0198 * 1 * (19/20)</gadget>
<output>18.81</output>

<result>18.81</result>