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.
Put simply, net sales is money the company gets from its customers, while net income is the money the company ultimately keeps. Net sales, also called revenue, represent all the money a company takes in from its customers in the course of its ordinary business activities. If it's a clothing store, for instance, this is the money that comes in from selling clothing. If it's a law firm, it's the money that clients pay for legal services.