A year ago that measure — used to gauge a chain’s ability to grow lucratively — was negative 2%.
Costco’s same-store sales started the year strong but fell to 4% in June, sparking worries that it would slip back into recession mode or lose popularity with shoppers.
The 7% gain was a welcome surprise and sent Costco’s shares up 80 cents to $58.59.
Net sales for August were $5.9 billion, up from $5.4 billion a year ago.
For its fiscal year ended Aug. 29, Costco’s net sales were $76.3 billion, up 9% from $69.9 billion a year earlier.