The turnover of New World Department Store in January was 5 million yuan, and the turnover in February was 5.5 million yuan. What percentage increase in turnover?
新世界百货公司一月份的营业额是500万元，二月份的营业额是550万元，求营业额的增长了百分之几？
<gadget id="calculator">550 - 500</gadget>
<output>50</output>

<gadget id="calculator">50 / 500</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>