Li Hong's mother went to the mall to buy a dress worth 380 yuan, and the mall offered a 20% discount for promotional activities. How much does mother need to buy this dress?
李红的妈妈到商场买一条380元的裙子，商场搞促销活动打八折优惠．买这条裙子，妈妈需要多少钱？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">380 * (4/5)</gadget>
<output>304</output>

<result>304</result>