Most product prices are set in about ten seconds. The founder looks at what the item cost, doubles it, glances at one competitor to make sure the number isn't wildly off, and moves on. It feels decisive, and it's almost always wrong — sometimes leaving profit on the table, sometimes quietly selling at a loss the founder won't notice for months. Price is the single most powerful lever in the whole business: it hits revenue and margin at the same time, and a change of a few percent can swing a store from bleeding to healthy without a single extra order.
The good news is that pricing well is not a dark art or a gift some people have. It's a process. The takeaway up front: price from three inputs at once — your true cost floor, the value the customer perceives, and what the market will bear — and let the highest defensible number win, not the first one you guessed. This guide walks through all three, runs a full worked example, and names the mistakes that cost small stores the most money.
The three inputs, and why you need all three
There are three classic ways to price, and each one is dangerous on its own.
Cost-plus starts with what the product costs you and adds a markup. It's simple and it guarantees you don't sell at a loss — but it ignores the customer entirely. Cost-plus will happily tell you to sell a product for $18 that customers would gladly have paid $40 for, because your costs happened to be low.
Value-based starts with what the outcome is worth to the buyer and prices against that. It captures the most margin when it works, but on its own it's untethered — it can talk you into a number the market will never actually pay, and it says nothing about whether you're even covering your costs.
Market-based starts with competitor prices and positions around them. It keeps you in the realm of reality, but if you only copy competitors you inherit their mistakes, race everyone to the bottom, and learn nothing about your own economics.
The right method isn't picking one. It's using all three as boundaries: cost sets the floor you must clear, value sets the ceiling the customer will tolerate, and the market tells you where in that band a shopper expects to see you. Your job is to find the highest number inside those boundaries that you can defend with a straight face.
Step 1: Build the real cost floor
Your floor is not the price you paid your supplier. That's the single most expensive mistake in pricing, and it's the same trap that makes founders misread their ad returns — the true cost of a sale is buried under fees and small line items that never make it into the mental math.
Build the floor from the bottom up, per unit:
- Cost of goods — the landed cost including the product itself, inbound shipping, and any import duty.
- Payment processing — roughly 3% of the sale price on most gateways.
- Fulfillment — packaging, pick-and-pack, and the shipping you absorb rather than charge.
- Returns provision — the share of orders that come back, amortized across every order so each one carries its fair slice.
- Platform and transaction fees — marketplace commissions or app fees tied to the sale.
Add those up and you have the number below which every sale actively loses money. Notice this is your variable cost floor — it doesn't yet include the rent, the software subscriptions, or your own time. Those fixed costs get covered by the margin above the floor, which is exactly why the margin has to be real. The gap between selling price and this floor is your contribution margin, and it's the number that ultimately decides whether the business works — the same number that determines whether you can afford to acquire a customer profitably.
Step 2: Estimate the value ceiling
Now flip to the customer's side of the table. The ceiling is the most a buyer would reasonably pay before they walk away or pick an alternative. You rarely know this precisely, but you can bracket it with a few honest questions:
- What does the shopper use today, and what does that cost them — in money, time, or frustration?
- What's the closest substitute, and what does switching to you save or add?
- How visible and emotional is the purchase? A gift, a status item, or a fix for an urgent pain tolerates a higher price than a commodity restock.
Value is also something you build, not just measure. Better photography, a clearer promise, a warranty, faster shipping, and social proof all lift the ceiling — which is why two stores can sell the identical product at very different prices and both be right. If your price is going to sit near the top of the band, the page has to earn it.
Step 3: Anchor against the market
With a floor and a ceiling in hand, look at where the market actually sits. Pull the real prices of three to five genuine alternatives — not just the cheapest listing you can find, but the ones your customer would realistically compare you to. You're not copying them; you're locating the shopper's expectation. If everyone credible sits between $30 and $50, a $12 price signals "cheap and risky," not "great deal," and a $90 price had better come with a visible reason.
Position deliberately inside that range. Undercutting only wins if you have a genuine cost advantage you can sustain; otherwise you've just started a fight you'll lose to whoever has deeper pockets.
A worked example
You source a product for $14 landed. The lazy method — double it — gives $28, and you'd feel fine about it. Let's do it properly.
Floor. Cost of goods $14, processing about $1, packaging and absorbed shipping $6, a returns provision of roughly $1 per order, and a $2 platform fee. That's a $24 variable floor. The "double it to $28" price leaves only $4 of contribution margin — nowhere near enough to cover fixed costs or acquisition. You were about to price yourself into a loss and call it a markup.
Ceiling. The product replaces something that costs the customer $50 and a trip to the store, and the closest online substitute is $45 but ships slowly. The shopper would reasonably pay up to about $45.
Market. Credible alternatives cluster between $38 and $48.
The defensible band is roughly $38 to $45 — well above both the naive $28 and the $24 floor. Price at $42, and your contribution margin jumps from $4 to $18 per order. Same product, same cost, same customer — a number instead of a hunch, and a business that can actually afford to grow.
The mistakes that cost the most
Pricing off supplier cost alone. Doubling the landed cost feels safe and routinely prices below the true floor once fees and returns are counted.
Anchoring to the cheapest competitor. The bargain-basement listing is often a loss leader, a lower-quality item, or a seller about to go out of business. Copying it imports their problem.
Leaving value uncaptured. Founders systematically underprice because they know what the product cost them and forget the buyer neither knows nor cares. If customers never flinch and never mention price, you're almost certainly too cheap.
Using discounts to fix a bad base price. A permanent sale is just a lower price with extra steps — and it trains customers to wait. Fix the number itself before reaching for a coupon.
Setting it once and never revisiting. Costs drift, competitors move, and your brand strengthens. Pricing is a quarterly check, not a launch-day decision you make forever.
Frequently asked questions
Isn't doubling my cost a safe rule of thumb?
No. "Keystone" markup ignores payment fees, fulfillment, and returns, so on many products doubling the landed cost still prices you below the point where a sale actually makes money. Always build the full variable floor first, then price well above it.
How do I price when I have no sales data yet?
Start with the three boundaries — floor, value ceiling, and market band — and place your price near the middle of the defensible range. You're not guessing blindly; you're using cost and competitor reality. Then treat the first months as a live test and adjust.
Should I just be the cheapest to win customers?
Only if you have a real, durable cost advantage. Otherwise being cheapest invites a price war you'll lose to a bigger competitor, and it signals low quality to the exact shoppers who'd have paid more. Compete on value, speed, or trust instead.
How do I know if my price is too low?
If almost no one ever questions the price, returns are low, and you're constantly sold out, you're likely leaving margin on the table. Test a modest increase on your best-seller and watch whether order volume actually falls — often it barely moves.
How often should I revisit pricing?
Review at least quarterly, and any time your landed cost, shipping, or a major competitor's price changes materially. Small, deliberate adjustments beat leaving a stale price in place for a year.
Next step
Take your best-selling product and do the full exercise once. Build the variable floor from the bottom up, bracket the value ceiling with honest questions, pull three to five real competitor prices, and find the highest defensible number in the band. You'll almost certainly discover you've been pricing on a hunch — and that a better number is sitting right there, waiting.
Ready to build the systems that make pricing and margin easy to track? Start at rocketmaxx.com.
