The original price of a commodity is 400 yuan. After the price is reduced (1/5), the price is increased (1/5). What is the current price?
一件商品原价400元，降价(1/5)后，又涨价(1/5)．现价是多少元？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">400 * (4/5) * (6/5)</gadget>
<output>384</output>

<result>384</result>