The original price of a down jacket is 800 yuan, but the price is reduced by 10% in the off-season, and the price is raised by 10% in the peak season. How much is the price of this down jacket in the peak season?
一件羽绒服原价800元，反季节降价一成，到了旺季又提价一成，这件羽绒服在旺季销售的价格是多少元？
<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">800 * (9/10) * (11/10)</gadget>
<output>792</output>

<result>792</result>