Xiaohong deposits 6,000 yuan of New Year's money in the bank. Calculated at an annual interest rate of 5.40%, after three years of depositing, how much is the after-tax interest.
小红把6000元的压岁钱存入银行，按年利率5.40%计算，存满三年后，应得税后利息多少元．
<gadget id="calculator">5.4 / 100</gadget>
<output>0.054</output>

<gadget id="calculator">6_000 * 0.054 * 3</gadget>
<output>972</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">972 * (19/20)</gadget>
<output>4_617/5 = around 923.4</output>

<result>4_617/5 = around 923.4</result>