dpd1 - 12:42 am on Dec 2, 2010 (gmt 0)
many people can't calculate their actual costs.
That's very true, and it's most likely what fuels the endless supply of dirt cheap sites and eBay stores. People figure if the stuff is going out the door, then they're making money. I'm actually pretty good about keeping on top of stuff, right down to the cents for each fastener used on a product, and even I still have a heck of a time keeping it all up to date. So for people who are bad at that stuff, you could easily be losing your a**.
Plus, for the big companies... Don't forget the room full of accountants that can take a loss and spin it into a gain. Or at least break even.