An insurance company pays business tax at 5% of its turnover. This year, the company's total turnover is 90 million yuan. How much is the business tax payable this year?
一个保险公司按营业额的5%缴纳营业税，今年这个公司的营业额共计9000万元，这一年应缴营业税多少万元．
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">9_000 * (1/20)</gadget>
<output>450</output>

<result>450</result>