The original price of a piece of clothing is 70 yuan, but now it is discounted. My mother paid a piece of 50 yuan, and got back 6 yuan. How much cheaper is this dress?
一件衣服原价70元，现在打折，妈妈付了一张50元的人民币，找回6元，这件衣服便宜了多少元？
<gadget id="calculator">50 - 6</gadget>
<output>44</output>

<gadget id="calculator">70 - 44</gadget>
<output>26</output>

<result>26</result>