Master Wang's monthly salary is 4,000 yuan. According to the new tax law of the country, the part exceeding 3,600 yuan should pay 5% personal income tax. What is the actual monthly salary of Master Wang?
王师傅的月工资为4000元．按照国家的新税法规定，超过3600元的部分应缴5%个人所得税．王师傅每月实际工资收入是多少元．
<gadget id="calculator">4_000 - 3_600</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>

<gadget id="calculator">4_000 - 20</gadget>
<output>3_980</output>

<result>3_980</result>