Song and dance actor Wang Hua participated in the 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 3,500 yuan is subject to personal income tax at a rate of 20%. How much is Wang Hua's after-tax income from this performance?
歌舞演员王华参加演出，收入5000元，按个人所得税法规定，演出收入扣除3500元后的余额部分，按20%的比例缴纳个人所得税．此次演出王华的税后收入是多少元？
<gadget id="calculator">5_000 - 3_500</gadget>
<output>1_500</output>

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

<gadget id="calculator">1_500 * (1/5)</gadget>
<output>300</output>

<gadget id="calculator">5_000 - 300</gadget>
<output>4_700</output>

<result>4_700</result>