What is the difference between gross margin and net margin for a small online seller?

You sell a product for Rs 500. It cost you Rs 300. Surely you made Rs 200. Yes, and no. That Rs 200 is your gross profit, but it is not what you keep. Between the sale and your pocket sit ads, packing, payment fees and more. The difference between the profit before those costs and the profit after them is the difference between gross margin and net margin. Seeing both gives you a truer picture of the business.

Gross margin: before the other costs

Gross profit is the selling price minus the direct cost of the product itself, the cost of buying or making it.

In our example:

• Selling price: Rs 500
• Product cost: Rs 300
• Gross profit: 500 minus 300, which is Rs 200

Gross margin is that profit as a share of the selling price: 200 divided by 500 is 0.40, so the gross margin is 40 percent.

Gross margin tells you how much room the product leaves to pay for everything else. A higher gross margin gives you more room.

Net margin: after the other costs

Now count the costs that come with making that one sale. Suppose, for this example:

• Ads: Rs 60
• Packing: Rs 30
• Payment fee: Rs 10

Add them: 60 plus 30 plus 10 is Rs 100.

Net profit is the gross profit minus those costs: 200 minus 100, which is Rs 100.

Net margin is net profit as a share of the selling price: 100 divided by 500 is 0.20, so the net margin is 20 percent.

So the same sale shows a 40 percent gross margin and a 20 percent net margin. The gap of Rs 100 is the cost of actually getting the order to the customer.

Why the gap matters

If you only look at the gross figure, you may think you have more profit than you do. A seller who prices to hit a 40 percent gross margin and then spends heavily on ads can end up with a thin net margin or even a loss on some orders. Net margin shows whether the business really pays you.

It also tells you where to look when profit is low. Is the product cost too high? Are ads eating the margin? Is packing costing more than expected? Each question points to a different fix.

Things that sit in the net layer

The costs in our example are only illustrations. For your own business, think about costs that attach to each order or to the business as a whole:

• Advertising and promotion
• Packing material
• Payment gateway charges
• Shipping you pay and do not pass on to the buyer
• Returns and refunds
• Discounts and coupons
• Platform or software fees
• Your own time, if you want to count it

Some of these vary by order, such as packing. Others are fixed each month, such as software fees. For a rough view, spread monthly costs across your monthly order count and add them to each order.

How to calculate your own

Pick one product and write down its numbers:

• Selling price
• Product cost, including anything you pay to get it to you
• Packing per order
• Payment fee per order
• Average ad spend per order

Subtract each from the selling price. The answer is your net profit per order. Divide that by the selling price to get net margin. Our post on landed cost per unit explained helps with the product cost side.

Use it to price better

Once you know your typical net layer cost, you can check whether a price leaves enough. If your target net margin is a certain percentage, work backwards from it. Read price from target margin formula to see how, and markup vs margin: the difference explained if the two words still confuse you.

The main takeaway

Gross margin shows what the product earns. Net margin shows what you keep. In this illustration, 40 percent gross became 20 percent net once ads, packing and fees were counted. Track both, and make decisions on the second.