Xiaohui deposits 2,000 yuan in the bank for three years, the annual interest rate is 5.22%, and the interest tax is 5%. How much is the after-tax interest at maturity?
小惠把2000元钱存入银行，存定期三年，年利率为5.22%，利息税为5%，到期时可得税后利息多少元．
<gadget id="calculator">5.22 / 100</gadget>
<output>0.0522</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 * 0.0522 * 3 * (19/20)</gadget>
<output>297.54</output>

<result>297.54</result>