A certain commodity is sold at a 30% discount, which is 63 yuan cheaper than before. How much is this commodity originally?
某种商品打七折出售，比原来便宜了63元前，这种商品原来多少元．
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">1 - (7/10)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">63 / (3/10)</gadget>
<output>210</output>

<result>210</result>