After the price of a commodity has been reduced by 20% twice in a row, it is now 144 yuan per piece, what is the original price?
一种商品连续两次降价20%后，现在每件144元，原价多少元．
<gadget id="calculator">20 / 100</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">(4/5) * (4/5)</gadget>
<output>16/25 = around 0.64</output>

<gadget id="calculator">144 / (16/25)</gadget>
<output>225</output>

<result>225</result>