Zhang Mingyun's mother bought a coat at the original price of 200 yuan, but the price was reduced (1/10) and then increased (1/10). How much is the current price of this coat?
张铭云妈妈买一件大衣原价200元，降价(1/10)后又提价(1/10)，这件大衣现在售价多少元？
<gadget id="calculator">1 / 10</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">200 * (9/10) * (11/10)</gadget>
<output>198</output>

<result>198</result>