Professor Yang needs to pay a manuscript fee of 4,300 yuan. According to relevant regulations, if the amount exceeds 800 yuan, he should pay personal income tax at 5% of his income. How much tax should he pay?
杨教授要领稿费4300元，根据有关规定，超过800元的应按收入的5%交个人所得税，他应交税多少元？
<gadget id="calculator">4_300 - 800</gadget>
<output>3_500</output>

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

<gadget id="calculator">3_500 * (1/20)</gadget>
<output>175</output>

<result>175</result>