Bundle Pricing Strategies for Ecommerce

All figures in this guide are illustrative. Every percentage margin is calculated on the same basis as our bundle profit calculator, so you can check them with your own numbers.

What a discount really costs

Say you sell a product at $20 and it costs you $7. You earn $13 on each sale before other costs. Offer 15% off and you earn $10 instead.

A 15% discount has cut your profit per unit by 23%, because the whole discount comes out of your margin. To earn the same total, you need 30% more units: $13 ÷ $10 = 1.3.

A bundle discount is worth offering only if it causes something that wouldn’t have happened otherwise, such as an extra item in the order or a sale you’d have lost.

Fixed-price bundles

“Any three for $54” is easy to explain, and it’s also the model where a customer’s selection does the most to your margin.

Here’s an illustrative skincare pool, on product cost alone:

Suppose 70% of buyers choose the typical mix and 30% choose the dearest set. Your average profit is 0.7 × $26 + 0.3 × $16 = $23 per bundle, a blended margin of 42.6%. If value-seeking pushes more people to the costly selection, that blended figure falls.

You have two good ways of protecting it:

• Exclude the costliest item. Without the $36 face oil, the most expensive selection is worth $92 and costs $32, so margin rises to 40.7%.
• Charge a surcharge. Adding $6 for the face oil makes that selection $60 at a cost of $38, for a margin of 36.7%. It keeps the item available but makes the offer harder to explain.

Percentage discounts

“15% off any three” automatically keeps margin proportional to what was chosen.

Compare the second row with the fixed-price table. The range of margins is much narrower, and you can’t lose out to a selection you didn’t plan for.

The trade-off is that the customer does a little more arithmetic, and the final price isn’t known until they’ve finished. A price that updates as they choose helps.

A fixed amount off behaves differently from a percentage. Taking $10 off any three items is a 17.5% saving on a $57 selection, but only 10% on a $100 one, so it gives away proportionally the most on your cheapest sets.

Buy more, save more

The saving grows with the quantity: 10% off two items, 15% off three, 20% off four. The same structure is also known as a volume discount. It works for any purchase where more of something is useful, and it doesn’t require a builder.

Minimum quantities

A minimum quantity defines when the offer starts. It’s mainly a cost-control tool.

If each order costs you $6.50 in packaging and fulfilment, that cost weighs heavily on one $20 item and lightly on four. Setting your minimum where the order clearly covers its own handling is more useful than a round number. There’s a method for finding that point in the build-your-own-box guide.

Check also whether the minimum is reachable. If most customers buy one item, a minimum of five will go largely unused.

Tiered pricing

Tiers show the customer a reason to add one more. Here’s a worked example with a $20 product, $7 cost, $6.50 per-order handling, and a payment fee of 2.9% plus $0.30.

Every tier earns more than the previous one, because each additional item shares the same handling cost. The fourth item still adds $5.62.

Notice that margin almost stops improving between three and four items. That’s the point at which a deeper tier is giving away about as much as the shipping saving returns. A fifth tier at 25% is worth modelling before you offer it.

Tiers work best with small numbers of levels. Two or three clear steps are easier to act on than a long table.

Profit margins

A few definitions, because they get used loosely:

• Gross profit: what’s left of the selling price after direct costs.
• Gross margin: that profit as a percentage of the selling price.
• Markup: profit as a percentage of the cost. Markup and margin aren’t interchangeable. A $7 product sold at $20 has a 186% markup and a 65% margin.

Our calculator includes fulfilment and payment fees when working out gross margin, because they’re direct costs of each order. Accountants often report them elsewhere, so check which basis you’re comparing against.

Set a floor before you set a discount. If your minimum acceptable margin is 40%, the calculator will tell you the deepest discount that respects it. With the default example, that’s 18.9%.

Average order value

Average order value is the number that bundles are usually sold on, and it’s easy to misread.

Take 100 orders of the single $20 item above. Average order value is $20, and total contribution is $562.

Now suppose 30 of those customers are persuaded to buy a three-item bundle at 15% off:

• Average order value rises to $29.30.
• Total contribution rises to $1,045.

That is a real gain, but it assumes those customers would otherwise have bought just one item.

Now consider a different group: customers who would have bought three items at full price anyway. Their order earned $30.46 before. Each one who takes the bundle instead earns you $21.72, which is $8.74 less, while your average order value barely changes.

So measure the effect rather than assuming it. Look at what bundle buyers spent before the offer, or hold the offer back from a sample of your visitors if your tools allow it.

Unit economics

To decide whether a bundle is worth selling, count what it costs to fulfil and sell one.

Run the numbers for your most likely selection and your worst realistic one. The calculator handles a uniform bundle. For varied selections, run your cheapest and dearest items as two separate scenarios.

What the research says

Rigorous evidence specific to ecommerce bundles is scarcer than the confident numbers online would suggest.

Bundle-size pricing has good theoretical support. Chu, Leslie and Sorensen studied pricing by the number of items bought and found it can get close to the profit of far more complex schemes. In their theatre company case, it beat pricing each item separately by 0.9%. That’s a sign the structure is sound, but it won’t necessarily transform your results.

How you present the discount can matter. In experiments summarised by Khan and Dhar, the same saving attracted more bundle purchases when it was framed against the indulgent item in a two-product set. That’s worth testing for sets that mix treats with essentials.

Treat benchmark figures with suspicion. You’ll see claims that bundles raise revenue by a set percentage, or that a particular discount is ideal. When we traced a selection of these, many had no source, and others misreported the original. One widely repeated claim about Nintendo, for instance, garbles an academic study that was based on model estimates for a near-monopoly in the early 2000s. Your own data is a much better guide.

Choosing a strategy

Start with one structure, measure it, and change it only when you have evidence. To put numbers against your own range, use the bundle profit calculator.