Mr. Li received 4,500 yuan as a manuscript fee for publishing an article. According to the regulations, the deducted part of 3,500 yuan should be paid as personal income tax at 3%. How much personal income tax should Mr. Li pay?
李老师发表文章得4500元的稿费，按规定扣除3500元的部份要按3%的缴纳个从所得税，李老师应缴纳个人所得税多少元．
<gadget id="calculator">4_500 - 3_500</gadget>
<output>1_000</output>

<gadget id="calculator">3 / 100</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">1_000 * (3/100)</gadget>
<output>30</output>

<result>30</result>