Costco annual revenue

Costco revenue and pet food sales have grown together with a correlation of 0.983, which is less a statistical discovery and more a confirmation that Costco's Kirkland Signature dog food aisle is doing exactly what it was designed to do. The membership is swiped, the 40-pound bag of kibble is purchased, and both numbers go up because the same household budget funds both the membership and the pet. The cart is full. The dog is full. The correlation is full of itself.

Costco revenue grew from about 89 billion to over 242 billion between 2010 and 2022. Pet food sales grew from about 28 billion to over 58 billion. The correlation is partly a supplier-customer relationship: Costco is a major pet food retailer, and its Kirkland brand is one of the best-selling pet foods in America. The same affluent, bulk-buying household drives both metrics. Less spurious than most.

Thirteen years of Costco and pet food is a correlation where the mechanism is the checkout line: the same customer, the same store, the same budget line item. The membership card is scanned, the dog food is loaded, and the chart records both as the same economic activity because it essentially is.