If 5,000 yuan is deposited in the bank for one year, the annual interest rate is 3.06%, and the after-tax interest can be earned at maturity.
5000元存入银行一年，年利率3.06%，到期可得税后利息多少元．
<gadget id="calculator">3.06 / 100</gadget>
<output>0.0306</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">5_000 * 0.0306 * 1 * (19/20)</gadget>
<output>145.35</output>

<result>145.35</result>