For a commodity, the price is reduced by 20% and then increased by 20% to buy 192 yuan. What is the original price of this commodity?
一种商品，先降价20%后，又涨价20%后买192元，这件商品的原价是多少？
<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">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">192 / (6/5) / (4/5)</gadget>
<output>200</output>

<result>200</result>