And, IMO, you were being very nice and helpful to her in giving her that info. Many new and younger retail employees don't seem to have a real handle on what information they can give out - I've dealt with employees over the years who range from giving out nothing including info that should be given to customers to divulging info that is highly confidential simply because they were very young, not well-trained and did not understand the ramifications, either to themselves or to their company, of that information being given out. I have never known a company (and I work in internet marketing and thus deal with companies all the time so I do know about this) who did not consider anything to do with finances (other than what would be released in a corp. financial statement for a public company) to be confidential! Almost all Requests for Proposals that I get from clients and advertising agencies these days come with a confidentiality clause!
I think you were being very helpful in warning her and I hope he/she takes that warning to heart - while, we all love to get "insider" information, I personally don't want to see someone fired over this or for this Forum to have legal issues because of the content posted on here.
Also, please keep in mind that even if this $8 figure quoted is accurate, I sincerely doubt that is the true cost of a Carly - there are many more costs that will get added onto that bag before actual profit is calculated - so while Coach is making a huge profit - one in the 800% plus markup range at full price - they are most likely not making $391 profit on a $398 bag!