The average monthly turnover of a flower shop is 8,000 yuan. If the sales tax is 5% of the turnover, how much is the average monthly sales tax for the flower shop.
鲜花店平均月营业额8000元，若按营业额的5%缴纳营业税，该鲜花店平均每月需缴纳营业税多少元．
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">8_000 * (1/20)</gadget>
<output>400</output>

<result>400</result>