The Bill of Materials (BOM) is just a subset of the Cost of Goods Sold (COGS), and if you aren’t selling your product for more than your COGS, you will lose money and go out of business.

Gross margin focuses on revenue and COGS, unlike the net profit margin, which takes all of a business's expenses into account. Investopedia / Tara Anand Net Sales is the equivalent to revenue or ...