ParknShop Shopping Center carried out commodity consumption promotion activities during the Golden Week in October, and sold the induction cooker whose original price was 380 yuan by 10%, and raised the price by 10% after the Golden Week. Please do the math, is the price of this product more expensive or cheaper after Golden Week?
百佳商场十月黄金周开展商品促消活动，将原价为380元的电磁炉降价10%售出，黄金周后又将该产品提价10%出售．请你算一算，黄金周后该产品价格是贵了还是便宜了？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

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

<gadget id="calculator">(9/10) * (11/10)</gadget>
<output>99/100 = around 0.99</output>

<result>99/100 = around 0.99</result>