The price of a piece of clothing is 300 yuan, and it is now sold at a discount of 30%. What is the current price?
一件衣服售价为300元，现在打折7折出售，现在售价是多少．
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">300 * (7/10)</gadget>
<output>210</output>

<result>210</result>