keystone pricing
Keystone pricing is the old trader's rule of doubling what you paid for goods to set the selling price, covering costs and profit in one clean move.
In plain English
Aunty Ngozi at Balogun market has a rule she has used for thirty years. Whatever she pays for a bag of shoes from her Aba supplier, she doubles it before it touches her shelf. She buys a pair for ₦4,000, she sells for ₦8,000. No calculator, no long sums, just a rule that has fed her family and sent three children through school.
That rule has a name in business books, keystone pricing. You take your cost price and multiply it by two to arrive at your selling price. The idea is that the markup should be wide enough to absorb the things people forget to count, spoilage, theft, slow moving stock, the customer who bargains you down, the naira that keeps losing its value while your goods sit unsold.
It became popular in shops and retail chains because it is fast and it is safe. A shopkeeper in Lagos does not have time to calculate exact overheads for every single item on a crowded shelf. Doubling the cost gives a rough and ready cushion. In the United Kingdom, small boutique owners on the high street use the same trick, buy a jacket wholesale for £20, price it at £40, and hope the rent and business rates get covered somewhere in that gap.
The catch is that keystone pricing does not care whether your product is a fast selling phone charger or a slow selling designer bag. Doubling a cheap item might leave you with pennies of real profit once you subtract rent and transport. Doubling an expensive item might price you out of the market entirely, because your customer can find the same bag elsewhere for less.
Smart traders use keystone pricing as a starting point, not a permanent law. Aunty Ngozi doubles the cheap slippers because people buy them fast and forgive a fair markup. But for the leather bags that take three months to sell, she prices differently, watching her competitors, watching her customers, adjusting as she goes.
A trader buys school bags for ₦6,000 each from a Kano wholesaler. Using keystone pricing, she sells each bag for ₦12,000, doubling her cost to cover transport, spoilage, and her own profit.
Questions people ask
Does keystone pricing work for every kind of business?
Not really. It suits shops selling physical goods with clear cost prices, like clothes, shoes, or electronics accessories. Service businesses, or items with very high or very low cost prices, often need a different approach because doubling can either shrink your profit to nothing or push your price beyond what customers will pay.
Is keystone pricing the same as a 50 percent markup?
No, and this trips people up often. A 100 percent markup, which is keystone pricing, gives you a 50 percent profit margin. If you buy at ₦4,000 and sell at ₦8,000, your profit is ₦4,000, which is 50 percent of your selling price, not 100 percent.
Why do some shops not simply double every price?
Because competition and customer expectation get in the way. If everyone else in the market sells a similar item for ₦7,000, doubling your own cost to reach ₦8,000 might leave your goods sitting unsold while your neighbour's stall moves fast.
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