This example uses FDELETE to delete an empty directory to which you have write access. If the directory is not empty, the optional SYSMSG function returns an error message stating that SAS is unable to delete the file.
Costcoâs business model is called a subscription business model â customers who want to shop at the store must buy a membership (currently $55 in the U.S.) with the promise of lower prices to make up for the initial upfront cost.
Costco offers paper in 2,500-packs for $17.99 and 5,000-packs for $35.99. When buying 200 of the 5,000 packs at once, Costco reduces the price to $28.99 per package of 5,000 sheets. With this option the Costco unit price is $0.0058.he $93.99 that Costco markets the 180-pack for equates to a unit cost of $0.52. Letâs say an average couple, seeing as the Costco membership is valid for a member and a spouse, consumes one 36-pack per week.