According to regulations, the hotel has to pay 5% business tax every month, and also pays urban maintenance and construction tax according to 7% of business tax. Haozailai Hotel paid an urban maintenance and construction tax of 6,300 yuan in January this year. What is the turnover of Haozailai Hotel in January this year?
按规定，酒店每月要缴纳5%营业税，还要按营业税的7%缴纳城市维护建设税．好再来酒店今年一月份缴纳城市维护建设税0.63万元，好再来酒店今年一月份的营业额是多少万元？
<gadget id="calculator">7 / 100</gadget>
<output>7/100 = around 0.07</output>

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

<gadget id="calculator">0.63 / (7/100) / (1/20)</gadget>
<output>180</output>

<result>180</result>