Uncle Wang saved 40,000 yuan and deposited it in the bank on December 20, 2004, for two years. The annual interest rate of the two-year time deposit is 2.7%, and the interest tax rate is 20%. How much interest can Uncle Wang get back when it expires?
王大伯积攒了40000元钱，2004年12月20日存入银行，定期两年．两年定期存款的年利率是2.7%，利息税的税率是20%．到期时，王大伯可取回利息多少元？
<gadget id="calculator">2.7 / 100</gadget>
<output>0.027</output>

<gadget id="calculator">40_000 * 0.027 * 2</gadget>
<output>2_160</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">2_160 * (1/5)</gadget>
<output>432</output>

<gadget id="calculator">2_160 - 432</gadget>
<output>1_728</output>

<result>1_728</result>