The sales volume of a shopping mall in January was 5 million yuan, and the sales volume in February increased by 5.6%. It is estimated that the sales volume in March will increase by 2 percentage points compared with February.
某商场一月份的销售额为500万元，二月份的销售额增加了5.6%，预计三月份的销售额比二月份提高二个百分点，求三月份的销售额预计多少万元？
<gadget id="calculator">5.6 / 100</gadget>
<output>0.056</output>

<gadget id="calculator">1 + 0.056</gadget>
<output>1.056</output>

<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">1 + (1/50)</gadget>
<output>51/50 = around 1.02</output>

<gadget id="calculator">500 * 1.056 * (51/50)</gadget>
<output>538.56</output>

<result>538.56</result>