Xiaoli deposits 500 yuan in the bank for 5 years, and the annual interest rate is 6.66%. How much is the after-tax interest rate she can get from the bank when it expires.
小丽将500元钱存入银行，定期5年，年利率是6.66%，到期她可以从银行获得税后利率多少元．
<gadget id="calculator">6.66 / 100</gadget>
<output>0.0666</output>

<gadget id="calculator">500 * 0.0666 * 5</gadget>
<output>166.5</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">166.5 * (4/5)</gadget>
<output>133.2</output>

<result>133.2</result>