Qin Jun’s father’s salary last month was 4,500 yuan, and the threshold for personal income tax is 3,500 yuan. The part that does not exceed 1,500 yuan is taxed at 3%, that of 1,500-4,500 yuan is taxed at 10%, and that of 4,500-9,000 yuan is taxed at 20%. tax. So how much personal income tax should Qin Jun's father pay?
秦军的爸爸上月工资为4500元，个人所得税的起征点为3500元，不超过1500元的部分按3%纳税，1500-4500元的按10%纳税，4500-9000元的按20%纳税．那么秦军的爸爸应缴纳多少个人所得税？
<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>