A certain commodity is sold at 30% off for 140 yuan. What is the original price of this commodity?
某种商品打七折出售是140元，这件商品的原价是多少元．
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">140 / (7/10)</gadget>
<output>200</output>

<result>200</result>