Xinxin deposits 1,000 yuan in the bank. The annual interest rate for three years is 3.69%, and the interest tax is 20%. How much after-tax interest can you get after maturity?
欣欣将1000元钱存入银行，定期三年的年利率是3.69%，利息税是20%，到期后能获税后利息多少元．
<gadget id="calculator">3.69 / 100</gadget>
<output>0.0369</output>

<gadget id="calculator">1_000 * 0.0369 * 3</gadget>
<output>110.7</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">110.7 * (4/5)</gadget>
<output>88.56</output>

<result>88.56</result>