A box of apples weighs 11kg. The price of apples in September is 10% higher than that in August, and the price of apples in October is 5% lower than that in September. Is the price of apples in October higher or lower than in August? What is the range of ups and downs.
一箱苹果11kg，九月份苹果价格比八月份上涨10%，十月份苹果价格比九月份回落5%．十月份苹果价格比八月份涨了还是跌了？涨跌幅度是多少．
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">(11/10) * (19/20)</gadget>
<output>209/200 = around 1.045</output>

<gadget id="calculator">(209/200) - 1</gadget>
<output>9/200 = around 0.045</output>

<result>9/200 = around 0.045</result>