According to 5% of the turnover, the tax of 40,000 yuan has been paid. What is the turnover of 40,000 yuan?
按营业额的5%缴纳了4万元的税款，营业额是多少万元．
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

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

<result>80</result>