Teacher Zhang’s total monthly income is 3,680 yuan. If after deducting 3,000 yuan, the personal income tax is paid at a rate of 5%. How much personal income tax should Mr. Zhang pay every month?
张老师每月的总收入是3680元，如果扣除3000元后，按5%的税率缴纳个人所得税，张老师每月份应缴纳个人所得税多少元？
<gadget id="calculator">3_680 - 3_000</gadget>
<output>680</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">680 * (1/20)</gadget>
<output>34</output>

<result>34</result>