ISSAQUAH, Wash. — Costco has started the summer right, reporting sales of $9.92 billion for the month of June, the five-week period ended July 7, an 8% increase over the same period last year.
For the 44-week period that ended Sunday, sales were $87.05 billion, also an 8% increase over the same period last year. For the month and the 44-week period, same-store sales rose 6%.