Xiaohua bought a piece of clothing at a certain Taobao store under the promotion method of "20% off" and paid 240 yuan. How much is the current price cheaper than the original price?
小华在某淘宝店按"一律八折"的促销方式，购买了一件衣服，付款240元钱．现价比原价便宜了多少钱？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">240 / (4/5)</gadget>
<output>300</output>

<gadget id="calculator">300 - 240</gadget>
<output>60</output>

<result>60</result>