Issaquah, Wash.

Costco Wholesale Corp. reported net sales of $5.41 billion for the month of July, the four weeks ended Aug. 2, a 5 percent decrease from $5.70 billion in the same four-week period last year.

Costco Wholesale Corp. (NASDAQ: COST) reported net sales of $6.88 billion for the month of June, the five weeks ended July 5. The sales figure represents a 4 percent decrease from the $7.15 billion posted in the same five-week period last year.

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