Song and dance actress Lan Ting participated in a performance with an income of 5,000 yuan. According to the provisions of the Individual Income Tax Law, the balance of performance income after deducting 2,000 yuan is subject to personal income tax at a rate of 20%. How much is Zhang Ming's after-tax income after this performance?
歌舞演员蓝婷参加演出，收入5000元，按个人所得税法规定，演出收入扣除2000元后的余额部分，按20%的比例缴纳个人所得税．此次演出后，张鸣的税后收入是多少元？
<gadget id="calculator">5_000 - 2_000</gadget>
<output>3_000</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">3_000 * (1/5)</gadget>
<output>600</output>

<gadget id="calculator">5_000 - 600</gadget>
<output>4_400</output>

<result>4_400</result>