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Basic business economics, the retail selling price of product needs to equal ten times the cost of the parts used to manufacture it. That covers labour, packaging costs, transport costs, and the factory and retailers mark up.
Basic cost of getting a product out of a factory is generally three times the cost of the parts plus three times any labour costs.
Any business operating below these margins will eventually fail due to lack of funds for future product development and poor investment returns for any financial backers.