A person deposits 20,000 yuan in the bank with an annual interest rate of 2.67%. After one year expires, he has to pay 20% interest tax according to national regulations. How much is the actual interest?
某人将20000元存入银行，年利率是2.67%，一年期满后按国家规定须缴纳利息税20%．实得利息多少元？
<gadget id="calculator">2.67 / 100</gadget>
<output>0.0267</output>

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

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">20_000 * 0.0267 * 1 * (4/5)</gadget>
<output>427.2</output>

<result>427.2</result>