However, these doses are not the usual dose that a woman is exposed to when dying her hair, so it's hard to determine what this data means for a pregnant woman. She also revealed that there have been limited human studies that suggest a link to childhood cancer in children born to mothers who used hair dye while pregnant.
Another way to think about it, is the net sales amount is the amount of money that the company actually made before cost of goods sold and expenses. Returns and discounts are immediately subtracted, which gives a clearer view of how much money the company actually brought in.
The cost of sales is the accumulated total of all costs used to create a product or service, which has been sold. The term is most commonly used by retailers. A manufacturer is more likely to use the term cost of goods sold.