The basic calculation
A practical profit margin can be calculated as Estimated Profit divided by Net Revenue, multiplied by 100. If €10,000 of Net Revenue leaves €2,000 after known costs, the margin is 20%. The percentage helps compare periods of different size without being misled by revenue growth alone.
Why margin can fall while sales rise
Larger discounts, more expensive acquisition, higher shipping costs or a changing product mix can lift revenue while reducing margin. Growth should therefore be evaluated by how much of every revenue euro remains after costs, not only by orders and sales.
Product margin and total margin
Overall margin describes the business as a whole. Product contribution can reveal which items create value and which generate large revenue with weak economics. Reliable COGS and consistent allocation of relevant expenses are necessary before product comparisons are trusted.
What to check in practice
FAQ
How is profit margin calculated?
For the Kepio business view: Estimated Profit / Net Revenue × 100.
Can revenue increase while margin falls?
Yes. If costs grow faster than Net Revenue, margin can decline even when sales increase.