Master Wang’s monthly salary is 2,400 yuan, and the portion exceeding 2,000 yuan is subject to 5% personal income tax. How much is the tax paid?
王师傅月工资2400元，超过2000元部分需缴5%的个人所得税，缴税多少元．
<gadget id="calculator">2_400 - 2_000</gadget>
<output>400</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">400 * (1/20)</gadget>
<output>20</output>

<result>20</result>