By comparing these numbers against competitors’ numbers as well as against the retail sector (Wal-Mart, Target, Costco Wholesale Corp ( COST ), and Dollar General Corporation ( DG ) are large players in the sector), we can figure out how efficient the business is.
Refer to the input text as context and select the correct relationship between 'Costco' and 'retail' from the available options.
Options: creator, currency, subsidiary, industry