Three factories quote the same product. $4.10, $3.85, $3.40. The cheapest is seventeen per cent under the highest, which on a container of ten thousand units is real money, and the temptation is to treat that as the answer.
It is not an answer. It is barely a question yet. Because those three numbers are not three prices for one product. They are three different products, quoted by three factories that each made a hundred decisions you never specified, and the only thing you can see is the sum of those decisions rounded to two decimal places.
A price is a summary. Comparing summaries is not comparing.
What a Unit Price Is Hiding
Every quote is the output of a bill of materials, a process and a margin. You receive one number. The factory kept the arithmetic.
That matters because most of the ways to be cheaper are invisible in a finished sample sitting on your desk, and several of them do not show up for months.
The material grade is the big one. Virgin resin and regrind look identical in a moulded part and behave differently under stress and UV. Fabric quoted at a lower weight per square metre drapes almost the same and wears out faster. Full-grain leather, top-grain and split are all honestly called leather. Steel has grades. Adhesive has grades. None of this is visible.
Thickness and weight is the quietest saving of all, because it is continuous rather than binary. Nobody switches from metal to plastic and hopes you will not notice. They quote the wall a fraction thinner, the gauge a step lighter, the board a flute lower. Each individual reduction is defensible. Together they are the difference between two quotes.
Named components are where a cheap quote often lives. A zipper is not a zipper: a branded closure and an unbranded equivalent can differ by a multiple, and on a garment or a bag the zipper is one of the first things to fail. The same is true of motors, bearings, switches, hinges, cells and connectors. If your specification says "zipper", you have not specified a zipper. The materials inside a product carry their own costs, which is why they are worth tracking as their own cost model rather than as one line.
Process and finish are next. Plating thickness, the number of coats, cure time, stitch density, weld count, the difference between printed and moulded-in. All of these are dials the factory can turn, and all of them show up as durability rather than appearance.
And then there is what is simply not in the number. Tooling that is amortised into the unit price by one factory and invoiced separately by another. Testing and certification included or excluded. Packaging, inner cartons, palletisation. Samples. If one quote carries the tooling and another does not, the cheaper quote may be the expensive one.
The Terms Are Part of the Price
Before comparing a single component, it is worth checking that everything sits on the same commercial basis, because these differences are often larger than the ones people argue about.
The Incoterm decides how much of the journey is in the number. An ex-works price and a free-on-board price are not comparable, and neither is comparable to a delivered price. This alone can account for the entire gap between two quotes.
Then quantity, because a price at five thousand units and a price at ten thousand are different prices. Currency and validity. Payment terms, because a thirty per cent deposit against a letter of credit against net sixty are three different costs of capital and none of them appear on the price line. Lead time, because six weeks and fourteen weeks are different working capital positions. And whether the price is fixed or subject to material escalation.
None of that is the product. All of it is the cost.
Ask What It Is Made Of, Not What It Cost Them
There is a version of this advice that tells you to request a cost breakdown — materials, labour, overhead, margin. Probably not the best idea. A factory's labour rate and overhead absorption are its own business, most will decline, and the request tends to signal that you have not done this before. What usually comes back is a number assembled to satisfy you, which is worse than no number.
You do not need their cost accounting. You need their specification.
That is a completely different request, and it is a reasonable one, because the specification is not confidential — it is the offer. What resin, at what grade. What fabric, at what weight. Which zipper, by name. Wall thickness. Plating microns. Stitch density. Carton board grade. Where the certification sits and who pays for the testing.
A factory that wants the order will answer those questions, and how it answers tells you something before you have compared anything: the ones who reply precisely are the ones who costed precisely.
Then the Comparison Is Mechanical — and That Is the Problem
With the specifications in hand, the analysis is not intellectually hard. Normalise the commercial terms so everything sits on the same Incoterm, quantity, currency and packaging. Then lay the specifications side by side and look for the lines that differ. You are not looking for the cheap factory. You are looking for where the cheapness is, because that is the only way to know whether you are buying a better price or a different product.
Then price the differences. If one factory has quoted a lighter fabric, get the delta quoted both ways. Once you can say that the gap is forty cents of material and fifteen cents of margin, you are negotiating rather than guessing.
If the quotes came back in shapes too different to line up at all, the fault is usually upstream rather than in the analysis — a specification tight enough to be quoted the same way by everyone is the whole point of a detailed request for quotation, or RFQ — a detailed RFQ.
For three quotes on one product, you can do all of this on a whiteboard in an afternoon. That is why everyone believes they do it.
Now do it for forty quotes across a dozen products in a category review. Every factory has used its own format, its own terms for the same material, its own order of lines, and half of them are PDFs. The specification detail that makes the comparison meaningful is exactly the detail that makes it unmanageable at volume, so what happens in practice is that somebody builds a spreadsheet with a column for unit price, and all the component knowledge that mattered gets dropped at the point it would have to scale.
That is the real failure. Not that importers do not know materials drive cost. They do. It is that the comparison collapses back to the one number that fits in a cell.
What Changes When You Can See It
When quotes are held against each other at specification level rather than at price level, three things become visible that were not before.
Which lines actually differ, so you know what you are being offered instead of what you asked for. Which materials are driving the unit cost, which is the difference between negotiating a price and negotiating the two components that account for most of the gap. And what the same component costs you across every supplier who quoted it, which is leverage you already own and probably cannot currently see.
None of that requires a factory to open its books. All of it requires the specification detail to survive from the quote into something you can actually query.
The Cheapest Quote Is Information
A number well below the others is not a win and it is not a red flag. It is a question that has not been asked yet.
Asking the low quote what they did differently is probably the most useful question in the process, and almost nobody asks it. A good factory will tell you, and the answer is usually legitimate: better material yield, an existing tool, spare capacity, a raw material they buy in volume for another customer. A factory that cannot explain why it is cheaper has either misunderstood your specification or is planning to solve the difference later, during production, without telling you.
Compare products, not prices. The price is the last thing you should look at, and it is the only thing most people look at first.
So — what are you using today to compare quotes at specification level rather than at unit price? And be honest about the second half of the question: does it still work when it is not three quotes on one product, but tens or hundreds of them across a whole category?