The turnover of an insurance company last year was 620 million yuan. If the business tax was paid at 5% of the turnover, how many billion yuan should be paid in business tax last year.
一家保险公司去年的营业额是6.2亿元，如果按营业额的5%缴纳营业税，去年应缴纳营业税多少亿元．
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">6.2 * (1/20)</gadget>
<output>0.31</output>

<result>0.31</result>