The turnover of a restaurant in October is 800,000 yuan, and the tax is 5% of the turnover. How much is the tax payable in October?
某酒家十月份营业额是80万元，按营业额5%纳税，十月份应纳税款多少万元．
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">80 * (1/20)</gadget>
<output>4</output>

<result>4</result>