You would have an unrealized gain if you bought a share of Amazon stock on Nov. 15, 2023 for $142 and held it for a year because the stock closed in mid-November 2024 at about $215. You only ...

Net Profit Margin = (Net Profit / Revenue) x 100. To calculate the net profit margin, divide the net profit by total revenue and multiply by 100 to express the value as a percentage.

For example, if your revenue is $100,000, and your COGS is $50,000, your gross profit margin would be (100,000 - 50,000)/100,000. This equation returns a gross profit margin of 50%.