To find your profit when you buy by the carton and sell by the piece, divide the carton price by the number of pieces, then compare with your selling price. A ₦7,800 carton of 24 costs ₦325 a piece, so selling at ₦450 makes ₦125 a piece and ₦3,000 a carton. Enter your own figures below.
How the Carton to Piece Price Calculator works
- Enter the price of the carton or pack.
- Enter how many pieces are in it.
- Enter your selling price per piece.
- See cost and profit per piece, and profit per carton.
Worked example
A provision store buys a carton of 24 malt drinks for ₦7,800.
Cost per bottle: ₦325
Selling price: ₦450
Profit per bottle: ₦125
Profit per carton: ₦3,000
Margin: 27.78%
Common mistakes to avoid
- Pricing pieces without dividing the new carton price
- Ignoring broken or expired pieces
- Forgetting transport from the wholesaler
Need a different calculator?
Small prices, big totals
A ₦25 change on one piece is ₦600 on a carton of 24. When wholesale prices go up, recheck your piece price straight away, before you sell a whole carton at the old margin.
Breakages and expired stock
If you often lose a piece or two per carton, divide the carton price by the pieces you actually sell. That gives your real cost per piece.
Selling in half-cartons and packs
If you also sell half-cartons or packs of six, work out each price from the same cost per piece. Bigger packs can carry a slightly lower margin per piece because you sell more at once and handle less change.
Frequently asked questions
How do I calculate the price per piece?
Divide the carton price by the number of pieces.
How much should I add per piece?
Many kiosks aim for a 20–35% margin on single pieces.
Can I use this for packs of sachets?
Yes. Enter the bag or pack price and the number of sachets.
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