The Minneapolis-based discounter's second-quarter net income fell nearly 10 percent, though that was better than what most had expected. Sales at stores open at least a year fell 1.1 percent, reversing seven straight quarters of gains. Its main competitor, Wal-Mart Stores Inc., reports results Thursday. Target's shares fell $4.74, or 6 percent, to $70.74 in afternoon trading. Customer traffic fell for the first time in a year and a half as Target struggled to get its grocery offerings right and shoppers looking for deals on essentials like detergent were turned off. Other issues, both company-specific and industrywide, ranged from a lack of new electronics for sale and lingering disruptions caused by the sale last year of its pharmacy business to CVS. Sales by markets also varied, with weakness on the East Coast but pockets of strength in California.