Gross profit margin is your profit divided by revenue (the raw amount of money made).Net profit margin is profit minus the price of all other expenses (rent, wages, taxes, etc.) divided by revenue. Think of it as the money that ends up in your pocket. While gross profit margin is a useful measure, investors are more likely to look at your net profit margin, as it shows whether operating costs ... More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.