Net sales aren’t used to make decisions about the business.

Net sales represent the revenue generated by a business, deducting returns, allowances, and discounts. It is essential for business as analysts use it to make business decisions or analyze top-line growth.

Check this video about Gross Sales x Net Sales with some great examples: https://www.youtube.com/watch?v=SAB_uRtvaOk

Source: "Net Sales" on corporatefinanceinstitute.com