After a 20% discount, each item sells for 334 yuan. How much is this commodity originally?
一种商品打8折后每件卖334元．这种商品原来每件多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">334 / (4/5)</gadget>
<output>835/2 = around 417.5</output>

<result>835/2 = around 417.5</result>