A shirt is 100 yuan, the price is first reduced by 10%, and then the price is increased by 20%, what is the current price
一件衬衫100元，先降价10%，又提价20%，则现价是多少元
<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">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">100 * (9/10) * (6/5)</gadget>
<output>108</output>

<result>108</result>