The Pricing Mistake That Eats Your Profit
You bought a bag of rice for ₦75,000. You sold it for ₦85,000. You made ₦10,000 profit, right?
Not so fast.
How much did you spend to bring that rice from the market to your shop? ₦2,000 for transport. How much of your monthly rent does that bag of rice need to cover? Your generator fuel? Your staff salary? The bag that sat in the sun and got damaged last month?
When you add all of that up, your ₦10,000 “profit” starts to shrink. Sometimes it disappears completely. Sometimes it goes negative, and you did not even know you were losing money.
This is the most common pricing mistake in Nigerian shops. You look at the gap between buying price and selling price and think that gap is your profit. It is not. That gap is just the starting point. Your real profit only appears after you subtract every cost it took to make that sale happen.
The good news: there is a simple way to price your products so you know, with confidence, that every sale puts real money in your pocket.
Markup and Margin Are Not the Same Thing
Before we get to the formula, you need to understand two words that sound similar but mean different things. Mixing them up is one of the biggest reasons shop owners think they are making 30% profit when they are only making 23%.
Markup is how much you add on top of your cost. Margin is how much of the selling price is profit.
Here is the difference with real numbers:
You buy a product for ₦10,000. You add ₦5,000 on top. You sell for ₦15,000.
- Markup: ₦5,000 / ₦10,000 = 50% markup (based on cost)
- Margin: ₦5,000 / ₦15,000 = 33% margin (based on selling price)
Same ₦5,000 profit. But the percentage looks very different depending on which way you calculate it.
| Buying Price | Selling Price | Profit | Markup | Margin |
|---|---|---|---|---|
| ₦10,000 | ₦13,000 | ₦3,000 | 30% | 23% |
| ₦10,000 | ₦15,000 | ₦5,000 | 50% | 33% |
| ₦10,000 | ₦20,000 | ₦10,000 | 100% | 50% |
Why this matters: If someone tells you to “add 30% on top” (markup), your margin is only 23%. If your expenses eat 25% of your revenue, you are losing money even though you thought you had 30%.
When tracking your business performance, margin is more useful because it tells you what percentage of every Naira that enters your shop is actual profit. If you want to learn how to track your overall margin, read our guide on calculating profit and loss.
The True Cost of Your Product
The price you pay at the market or to your supplier is only the beginning. The true cost of a product includes everything it takes to get that product sold.
Mama Chidi’s Indomie Example
Mama Chidi buys a carton of Indomie (40 packs) for ₦6,000. She sells each pack for ₦200, giving her ₦8,000 in revenue and what looks like ₦2,000 profit per carton.
But what about her other costs? She needs to spread them across everything she sells. Let us say she sells about 100 cartons of different products per month. Here are her monthly costs:
| Monthly Cost | Amount | Cost Per Carton Sold |
|---|---|---|
| Buying price | (varies) | ₦6,000 (for Indomie) |
| Transport from market | ₦8,000 | ₦80 |
| Shop rent | ₦35,000 | ₦350 |
| Generator fuel | ₦15,000 | ₦150 |
| Phone and data | ₦3,000 | ₦30 |
| Packaging (bags) | ₦2,000 | ₦20 |
| Wastage and damage (2%) | ~₦120 per carton | ₦120 |
| Total true cost | ₦6,750 |
Now the picture changes:
- Revenue per carton: ₦8,000
- True cost: ₦6,750
- Real profit: ₦1,250 (not ₦2,000)
- Real margin: 15.6% (not 25%)
That ₦750 difference between what Mama Chidi thought she was making and what she was actually making adds up. Over 100 cartons per month, that is ₦75,000 per month she thought she had but did not. Over a year, ₦900,000.
Hidden Costs Most People Forget
| Hidden Cost | Why People Forget It |
|---|---|
| Transport to and from market | ”I was going that way anyway” |
| Rent allocated per product | ”I already paid rent, it is not a product cost” |
| Generator fuel / NEPA | ”That is a general expense” |
| Damaged or expired goods | ”It is just one or two items” |
| Packaging and bags | ”Bags cost almost nothing” |
| Credit risk (customers who never pay) | “They will pay eventually” |
| Your own time | ”I do not pay myself” |
Every one of these costs is real. If you do not include them in your pricing, you are selling at a loss without knowing it.
How to Set Your Price: A Simple Formula
Here is a formula that works for any product:
Selling Price = True Cost / (1 - Target Margin)
Do not let the formula scare you. Here is how to use it step by step.
Step 1: Calculate Your True Cost Per Product
Add your buying price plus your share of monthly overhead costs. Use Mama Chidi’s method above: take your total monthly overhead, divide by the number of products you sell per month, and add that to each product’s buying price.
Step 2: Choose Your Target Margin
What percentage of the selling price do you want to keep as profit? Here is a guide for common Nigerian retail businesses:
| Business Type | Target Margin | Why |
|---|---|---|
| Provision store (staples like rice, oil) | 10–15% | High competition, price-sensitive customers |
| Provision store (snacks, drinks) | 15–25% | Less price comparison, impulse buys |
| Electronics and accessories | 20–35% | Higher risk of damage, slower turnover |
| Restaurant / food | 25–40% | Perishable goods, higher wastage |
| Clothing and fashion | 35–50% | Seasonal, style risk |
Step 3: Apply the Formula
Example: Emeka’s Phone Cases
Emeka buys phone cases from Alaba market for ₦3,000 each. His monthly overhead per product (transport, rent, fuel, staff) works out to ₦400.
- True cost: ₦3,000 + ₦400 = ₦3,400
- Target margin: 30%
- Selling Price = ₦3,400 / (1 - 0.30) = ₦3,400 / 0.70 = ₦4,857
Emeka rounds up to ₦5,000. His real margin on each phone case is ₦1,600 (32%), after all costs.
Example: Mama Chidi’s Indomie
- True cost per carton: ₦6,750 (as calculated above)
- Target margin: 15%
- Selling Price = ₦6,750 / (1 - 0.15) = ₦6,750 / 0.85 = ₦7,941
She sells 40 packs at ₦200 each, giving ₦8,000 per carton. Her actual margin is 15.6%. She is right on target.
If she was selling each pack at ₦180 instead (₦7,200 per carton), her margin would drop to 6.3%. That is too thin. One bad month and she is losing money.
Common Pricing Mistakes Nigerian Shop Owners Make
| Mistake | What Happens | What to Do Instead |
|---|---|---|
| Pricing based on what neighbours charge | You copy someone who might be losing money too | Calculate your own true cost and set your own price |
| Only looking at buying price | You forget overhead costs and think you are profitable | Include transport, rent, fuel, wastage in your calculations |
| Never raising prices when costs go up | Your margins shrink every time your supplier raises prices | Review your prices every time your costs change |
| Giving discounts without knowing your margin | A 10% discount on a 15% margin product leaves you with almost nothing | Know your minimum price (true cost) before offering any discount |
| Ignoring credit risk | Customers who buy on credit and never pay are a hidden cost | Add 2–5% to your pricing to cover expected bad debts. Track who owes you with a proper system |
| Selling everything at the same markup | Some products need higher margins to be worth stocking | Price each product based on its true cost, turnover speed, and competition |
What If Customers Say Your Price Is Too High?
This is the fear that keeps prices low. You are afraid of losing customers, so you keep prices thin. But selling cheap and losing money is worse than selling at the right price and losing a few price shoppers.
Here are practical ways to handle it:
Show the value, not just the price. “Yes, my price is ₦200 for Indomie. But I am right here in your street. No transport cost for you. I am open late. And if you buy on credit, I will remind you politely.” You are not just selling a product. You are selling convenience, trust, and reliability.
Offer a budget option. Stock a cheaper alternative alongside your main product. Some customers want the cheapest option. Let them have it. But keep your main products priced for profit.
Bundle items. “Buy 3 for ₦550 instead of ₦200 each.” You move more stock and the customer feels they got a deal. Your margin on the bundle can still be healthy.
Know your walk-away price. Below your true cost, you lose money on every sale. No customer is worth that. If someone demands a price below your cost, let them go. They are not a customer. They are a liability.
Focus on your regulars. Your loyal customers who come back every week are more valuable than someone hunting for the cheapest price once. Price for your regulars, not for price shoppers.
How SabiBooks Helps With Pricing
Pricing well starts with knowing your numbers. If you do not know your true costs, you cannot set the right prices. SabiBooks helps in specific ways:
Cost tracking per product. When you record purchases in SabiBooks, you can see exactly what each product costs you. No guessing.
Automatic profit calculation. Every time you make a sale, SabiBooks shows your profit on that sale. You can see which products make you money and which ones do not.
Expense tracking. All your overhead costs, from rent to fuel to transport, are recorded in one place. You can calculate your true cost per product with real numbers instead of estimates.
Low stock alerts. When stock runs low, you reorder before running out. No emergency trips to the market at higher prices.
If you want to see your full business performance, SabiBooks calculates your profit and loss automatically. You can check at any time whether your pricing strategy is working.
Key Takeaways
- Markup and margin are different. A 50% markup gives you only 33% margin. Know the difference.
- Your buying price is not your true cost. Add transport, rent, fuel, wastage, and packaging.
- Use the formula. Selling Price = True Cost / (1 - Target Margin). It takes 30 seconds per product.
- Review prices when costs change. If your supplier raises prices, your selling price must follow.
- Do not price based on your neighbours. They might be losing money too.
- Know your walk-away price. Never sell below your true cost. No exception.
- Track your numbers. You cannot price right if you do not know your costs right.
Price well, sell with confidence. Na when you know your numbers, your business go grow.
Want to understand your full business performance? Read our guide on calculating profit and loss or learn why you need to separate your business money from personal money.
