Costco Wholesale Corporation has reported net sales of $7.67 billion for the month of October, the four weeks ended October 28, 2012, an increase of nine percent from $7.01 billion during the similar four-week period last year.

For the first nine weeks of its reporting period, the company reported net sales of $16.98 billion, an increase of nine percent from $15.62 billion during the similar period last year.

Comparable sales for the four-week and nine-week periods ended October 28, 2012:

Inflation in gasoline prices, as well as stronger foreign currencies, had a positive impact on comparable sales for both periods. Excluding these effects, comparable sales for the four-week and nine-week periods were as follows: