It is the duty of every citizen to pay taxes according to law. Mr. Xie's monthly income is 3,400 yuan. According to the new personal income tax collection standard: if the personal monthly income exceeds 3,000 yuan, the excess part will be levied on personal income at a rate of 5%. How much was Mr. Xie's actual income last month?
依法纳税是每个公民的义务．谢老师月收入是3400元．按新的个人所得税征收标准：个人月收入超过3000元，其超过部分按照5%的税率征收个人所得．谢老师上月实际收入是多少元？
<gadget id="calculator">3_400 - 3_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>

<gadget id="calculator">3_400 - 20</gadget>
<output>3_380</output>

<result>3_380</result>