If the annual rate of the three-year regular loan is 5.4%, and Xiaohua's family deposits 2,000 yuan in the bank this year, how much after-tax interest will he get after three years? (Interest tax is calculated at 5%)
若三年定期陈款的年率是5.4%，今年小华家把2000元存入银行，三年后可得税后利息多少元．(利息税以5%计算)
<gadget id="calculator">5.4 / 100</gadget>
<output>0.054</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">2_000 * 0.054 * 3 * (19/20)</gadget>
<output>307.8</output>

<result>307.8</result>