The price of an air conditioner of a certain brand dropped by 15% in May compared to April, and the price in June increased by another 15% compared to May. Has the price in June increased or decreased compared to April? What is the magnitude of the change?
某品牌的空调5月的价格比4月的下降了15%，6月的价格比5月的又涨了15%，6月的价格与4月的价格上涨了还是下降了？变化幅度是多少？
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 - (3/20)</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">(17/20) * (23/20)</gadget>
<output>391/400 = around 0.9775</output>

<gadget id="calculator">1 - (391/400)</gadget>
<output>9/400 = around 0.0225</output>

<result>9/400 = around 0.0225</result>