Here's the problem with the question.... you simply can't generalize like that. Very few companies (and none of the big ones) would ever calculate selling price cost up (i.e. calculate the cost of all components, labor, packaging, stocking/distribution, marketing, etc.). You look at the market price of either existing product that you intend to replace or competitor products.
You price according to what the market is willing to pay. A larger company will take advantage both of economy of scale and the pricing benefit of a strong name, but usually also carries larger overhead costs. A smaller, lesser known company, may need to operate on a smaller margin to be able to sell at market price.
You price according to what the market is willing to pay. A larger company will take advantage both of economy of scale and the pricing benefit of a strong name, but usually also carries larger overhead costs. A smaller, lesser known company, may need to operate on a smaller margin to be able to sell at market price.