Q$2\mathrm{.}9($Major U$.$S$.$ Retailers$)$ The following table shows financial data for Costco Wholesale and Walmart, two major U$.$S$.$ retailers.$$Costco$$Inventories Sales $($net$)$COGS Source: Compustat, WRDS$.$Assume that both companies have an average annual holding cost rate of $30$ percent $($i$.$e$.,$ it costs both retailers $$3$ to hold an item that they procured for $$10$ for $1$ entire year$).$ a$.$ How many days, on average, does a product stay in Costco$$s inventory before it is sold? Assume that stores are operated $365$ days a year.