What is gross profit?
Published
Gross profit is what remains of revenue after deducting cost of goods sold only, before any operating expense. It is the amount available to cover salaries, rent, marketing, and everything else.
The equations
Gross profit = Revenue − Cost of salesGross margin = Gross profit ÷ RevenueMarkup = Gross profit ÷ Cost of salesConverting between them:Margin = Markup ÷ (1 + Markup)Markup = Margin ÷ (1 − Margin)
Al-Waha's figures
Gross profit = 460,000 − 268,000 = SAR 192,000Margin = 192,000 ÷ 460,000 = 41.7%Markup = 192,000 ÷ 268,000 = 71.6%
Two numbers for the same profit. This is the source of the most common pricing error in small businesses.
The pricing error
A business owner says: "I add 40% to cost, so my margin is 40%."
Wrong. On an item costing SAR 100:
Selling price = 100 × 1.40 = SAR 140Gross profit = SAR 40Actual margin = 40 ÷ 140 = 28.6%
The gap between 40% and 28.6% is 11.4 percentage points. On revenue of SAR 460,000 that is SAR 52,440 between expected and actual gross profit. A business budgeting its expenses on a 40% margin and delivering 28.6% discovers the shortfall at year end.
Quick conversion table:
| Markup on cost | Actual margin |
|---|---|
| 20% | 16.7% |
| 30% | 23.1% |
| 40% | 28.6% |
| 50% | 33.3% |
| 71.6% | 41.7% |
| 100% | 50.0% |
To hit a target margin, use the inverse. For a 40% margin:
Required markup = 0.40 ÷ (1 − 0.40) = 66.7%Selling price on a SAR 100 cost = SAR 166.70
Gross profit by product line
The headline 41.7% is an average that hides the detail. A breakdown of Al-Waha's sales:
| Product line | Revenue | Cost | Gross profit | Margin |
|---|---|---|---|---|
| Office furniture | 210,000 | 115,500 | 94,500 | 45.0% |
| Stationery | 152,000 | 98,800 | 53,200 | 35.0% |
| Devices | 98,000 | 53,700 | 44,300 | 45.2% |
| Total | 460,000 | 268,000 | 192,000 | 41.7% |
Stationery is 33% of revenue but only 28% of gross profit. Lifting its margin by two percentage points adds SAR 3,040 - more than 3% sales growth in furniture would. That kind of decision is invisible from the headline number.
Gross vs. operating vs. net profit
| Deducts | Al-Waha | Margin | |
|---|---|---|---|
| Gross profit | Cost of sales only | 192,000 | 41.7% |
| Operating profit | + operating expenses | 31,250 | 6.8% |
| Net profit | + finance costs | 27,250 | 5.9% |
Gross profit measures pricing and purchasing efficiency. Operating profit measures how well the business is run. Net profit measures the result after financing. A falling gross margin is a product, supplier, or pricing problem; falling operating profit on a stable gross margin is an expense problem.
Frequently asked questions
What is a good margin?
It varies enormously by sector: wholesale distribution may run at 10-15%, retail at 30-50%, software at 70-85%. The meaningful comparison is against your sector and your own history, not an absolute number.
Can gross profit be positive while net profit is negative?
Yes, and it is the most common pattern in struggling businesses. It means the product is profitable but the expense base is larger than the sales volume can carry.
Do employee salaries belong in cost of sales?
The salaries of people who directly produce or deliver the service: yes. Management, accounting, and marketing salaries: no, those are operating expenses.
Why is my margin falling when my prices haven't changed?
Usually because cost rose - supplier prices, freight, customs, or exchange rates - without repricing. Or because the sales mix shifted toward lower-margin items.