Specialty retailer of women's clothing The Dress Barn Inc on Wednesday posted a steep plunge in third quarter net profit as it was hurt by sliding same-store sales in a weak retail environment and bad weather. The New York-based operator of 777 stores reported net income of $2.6 million, or nine cents a share, for the 13 weeks to April 26, versus a profit of $9.5m, or 25 cents a share, in the year-ago period.