piece of clothing was priced at an 80% profit margin on the first day, and no one came to buy it; on the second day, it was discounted by 10% on top of that, but still no one came to buy it; on the third day, the price was reduced by 96 yuan, and finally sold. It is known that the selling price is 1.3 times the purchase price, find the purchase price of this dress.
一件衣服，第一天按80%的利润率定价，无人来买；第二天在此基础上再打九折，还是无人来买；第三天再降价96元，终于卖出，已知卖出的价格是进价的1.3倍，求这件衣服的进价．
<result>300</result>