A kind of refrigerator, the price during the National Day period was 15% lower than that in September, and due to the best-selling, the price was increased by 10% in early November. What percentage is the selling price in early November of September?
一种冰箱，国庆节期间的售价比九月份降低了15%，由于畅销，十一月初又将售价提高了10%．十一月初的售价是九月份的百分之多少？
<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">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">(17/20) * (11/10)</gadget>
<output>187/200 = around 0.935</output>

<result>187/200 = around 0.935</result>