According to the survey, the price of pork in April in Beijing rose by 15% compared to March, and in May it dropped by 10% compared to April. Did pork prices rise or fall in May compared to March? What is the magnitude of the change?
据调查北京市四月份猪肉价格比三月份上涨了15%，五月份又比四月份降了10%．五月份猪肉价格比三月份涨了还是降了？变化幅度是多少？
<gadget id="calculator">3.5 / 100</gadget>
<output>0.035</output>

<gadget id="calculator">0.035 / 1</gadget>
<output>0.035</output>

<result>0.035</result>