I believe everyone's profit margin is completely different. Everyone is going to know someone better than someone and get better deals. Also, they might buy more product and get it cheaper. I Also think places that don't make much on most of their stuff, always has some product that they can get away for selling three times the amount they pay. So in closing I don't think anyone really knows what people exact price is on their own product.

When you checkout at walmart its hard to not buy more then what you already have. They have anything from candy to phone chargers. The thing that bothers me is how they hve drinks by the registers that everyone always has to have. Where they get you at is the drinks are over two dollars and  if you would wait and buy them from the machines in the front of the store they are just one dollar. The other stuff they have is also over priced. If people would buy the small things at a General store they would save money but when people are checking out and they already have to pay for something they dont care about the price.