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.
More than one-third of Costco shoppers pay $110 for an executive membership, which reimburses them 2% cash back on their purchases. To cover the cost of the extra $55, executive members have to spend a minimum of $230 per month, or $2,750 a year. Executive members who spend twice that earn enough to cover the full cost of membership. To reap the full benefit of up to $750 cash back, they have to spend $37,500 per year.