A piece of clothing, the purchase price of the store is 100 yuan, if the price is increased by 10% first, and then the price is reduced by 10%, how much will the store lose
一件衣服，商店的进价是100元，若先加价10%，再降价10%，则商店赔了多少元
<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">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

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

<gadget id="calculator">100 - 99</gadget>
<output>1</output>

<result>1</result>