How To Grow Your eCommerce Store With Value and Volume Tests

If you strip eCommerce down to its simplest form, growth only comes from two places. 

Either each customer spends more (value), or more customers decide to buy (volume). 

That’s it. 

Every strategy you’ve ever seen fits into one of these two buckets.

When you understand this split, optimization becomes a lot easier because you can target the right lever with the right test. 

Sigmize helps you do exactly that, and it does it in a way that feels practical rather than theoretical.

Let’s walk through both engines of growth with clear examples and show you how to perform value and volume tests using Sigmize.

Grow by Value: Higher Average Order Value

When people talk about value growth in eCommerce, they’re talking about one thing, the amount of money a customer spends each time they place an order. 

If your average shopper spends $42 today and $55 next month, you’ve grown by value.

This is average order value, or AOV in action. 

It’s one of the easiest levers to pull because you’re not trying to convince new people to buy. 

You’re helping the people who already said yes to choose options that suit them (and you) more.

A good way to picture it is to imagine a friendly store owner who says, “Since you’re already buying this, here’s something that makes it even better.” 

That extra item or upgrade increases the order total in a way that feels natural to the customer.

How AOV Works

• A skincare store highlights a cleanse and hydrate kit for more than the single cleanser. Most people pick the kit because it feels more complete.
• A tea brand adds a 3 flavor sampler immediately below the main product. Shoppers who came for a pack of tea buy the sampler instead.
• A protein powder brand adds a subscription option with 10% savings. Even if only a fraction take the offer, revenue per customer grows.
• A candle shop promotes a buy 2, get 1 for $5 deal. Customers arrive intending to buy one and leave with three.
• A phone store offers a protection plan alongside the handset. Many buyers take the order bump because it solves an obvious problem.

These examples might look small, but they add up quickly across hundreds or thousands of customers.

None of them require new traffic. They simply make each order more valuable.

The Simple Psychology Behind Value Growth

People often choose the option that feels like the smarter deal. 

That’s why a “best value” badge or a clearly structured bundle can outperform a long sales pitch.

Value lifts work because of simple human behavior.

• Clear bundles feel like a shortcut to choosing.
• Labels like “best value” or “most popular” reduce uncertainty.
• Subtle savings nudge people toward smarter options.
• Reviews near premium items increase trust in higher priced choices.
• A higher anchor price makes the mid tier option feel reasonable.

When you help people make confident decisions, they can naturally select options with higher perceived value.

Practical Ways To Increase Value in Your Store

You don’t need huge catalogs or advanced pricing tactics to increase AOV. Often it starts with simple shifts.

• Add a multipack option for your best selling item.
• Add a frequently bought together option for key products.
• Rearrange products so bundles appear before or immediately after single items.
• Add subscription incentives for anything customers reorder.
• Showcase reviews or ratings beside premium products.
• Create a small upsell or order bump during checkout for a complementary item.
• Add a gentle “complete the set” section for related products.

These are the kinds of tweaks that most stores overlook until they see the data.

How To Test Value Ideas With Sigmize

Use Sigmize and you don’t have to guess whether your bundle or price change will work. 

Here’s how:

1. Create a new experiment, Sigmize > Experiments > Create.
2. Leave the existing product page as the control.

3. Duplicate that product page to create variant B.
4. Change something value focused, price, bundle or subscription copy.
5. Add a purchase goal so Sigmize tracks each version.

6. Let traffic split and watch the data settle over a couple of weeks.

If Variant B consistently produces higher AOV, you’ve unlocked real value growth.

Grow by Volume: More Customers Buy

Volume growth means increasing the number of people who complete a purchase. 

Instead of focusing on how much each customer spends, you focus on how many customers say yes. 

When conversion rate rises, order count rises. That’s volume.

Imagine you run a brick and mortar store. If ten people walk in and only one buys, that’s a weak conversion rate. 

If you make a few smart changes and now three people buy, your volume has increased. 

You didn’t have to attract more customers as people are visiting anyway. You simply helped them make a purchase decision.

This is often the least intimidating place to start because the changes are usually simple. 

Clarity, trust, and ease of use have a bigger impact than most people realise.

Real World Examples That Show Volume in Action

These small improvements often move conversion rates more than any paid traffic campaign.

• A supplement store adds review stars near the top of the page. New visitors trust the product faster and complete more checkouts.
• A clothing brand rewrites its product description so it explains fit, material and sizing clearly. Fewer people hesitate, more people buy.
• A home decor shop shortens a long, busy hero section so shoppers understand the key value faster. Confusion drops and sales rise.
• A makeup brand improves page load speed on mobile. More shoppers stay long enough to reach the add to cart button.
• A hardware retailer adds a money-back guarantee below the price. Customers who were on the fence feel safe enough to buy.
• A sports retailer adds user generated content showing real customers wearing their gear. Visitors see it in real life, improving confidence.

None of these change the AOV. They simply make buying easier, which increases the number of people who complete the journey.

The Psychology Behind Volume Growth

Shoppers tend to move fast. They scan, they skim and they decide in seconds whether to stay or leave. 

When something feels unclear or risky, they hesitate. That hesitation kills conversion.

Volume grows when you reduce that hesitation by improving three things:

• Clarity. Shoppers understand what they’re buying without needing to think.
• Confidence. Trust badges, reviews and guarantees make the decision feel safe.
• Smoothness. Fewer steps or distractions help keep people moving.

If you remove friction, more people complete the purchase. It’s that simple.

Practical Ways To Increase Volume In Your Store

As a store owner, you could see wins quickly with these changes:

• Make the primary CTA stronger and clearer. Replace vague text with direct action.
• Shorten long product descriptions so shoppers get the essentials faster.
• Add trust badges, reviews or a guarantee to reduce fear.
• Simplify the hero section so the value is obvious at a glance.
• Improve mobile speed because that’s where most hesitation happens.
• Clean up the checkout by removing non-essential fields that slow people down.

Every improvement increases the number of shoppers who continue the journey rather than abandon their cart.

How To Test Volume Ideas With Sigmize

Volume testing starts with understanding where people drop off. That’s exactly what Sigmize helps you uncover.

First, enable heatmaps and session replays and watch how people move through your page.

Sigmize > Experiments > Create > Additional Tracking

Look for signals like:

• Rage clicks on elements that aren’t clickable.
• Rapid scrolling because the page feels overwhelming.
• Pauses on sections that are unclear or poorly formatted.
• Repeated back and forth between product photos and the description.
• Users reaching checkout but not completing.

Once you spot a friction point, you can create a landing page experiment.

1. Duplicate a page to create Variant B.
2. Fix the friction. Shorten copy, adjust the hero image, sharpen the CTA, reorganize layout or add trust elements.
3. Let Sigmize run the split test.
4. Check the conversion rate improvements over time

If you enable session recordings, you can watch the user experience on the page and see exactly what works and what doesn’t.

For example, you see visitors hover over a confusing shipping message. You test a version with simplified text. 

Conversions rise because customers no longer felt uncertain about delivery costs.

Sigmize anonymously records user sessions and stores them so you can check any experiment at any time.

Why You Need Value and Volume Working Together

Most eCommerce stores grow unevenly. They either get good at value or good at volume, but rarely both at the same time. 

That creates an unstable business because one lever hides the weakness of the other.

• If your AOV rises but not enough customers buy, you have revenue spikes without stability. 
• If lots of people buy but they all choose the cheapest option, you have volume without profit. 

Real growth happens when both improve together, because they multiply each other’s impact.

The Classic eCommerce Mistake

A common example is ad scaling. A brand spends more on Facebook or Google ads thinking traffic equals growth. 

But if the product page still has weak CTAs, unclear copy or low trust, most of that expensive traffic leaves without buying. 

They pulled the volume lever, but ignored value and basic conversion health, so money leaked out of the funnel.

Another example is a strong bundle strategy with almost no traffic. 

The store has great AOV, but only a few buyers a day. They pulled the value lever but ignored volume, so growth remains flat.

That’s why you need both value and volume working together.

What Compounding Looks Like in Real Numbers

Value and volume don’t add, they multiply.

Let’s say you made improvements to your store and:

• AOV rises from $70 to $90.
• Conversion rate rises from 1.5% to 2.2%.

If these were isolated improvements, you’d think of them as small upgrades. But combined, they produce a far bigger increase in store profit.

• Higher AOV means every sale is more valuable.
• Higher conversion means you win more sales from the same traffic.

That combination creates compounding, which is the closest any of us get to free money.

How To Test Both Together Using Sigmize

This is where Sigmize becomes genuinely powerful. You can run value and volume tests at the same time without conflicts.

For example:

• A pricing or bundle test on the product page assesses value.
• A checkout UX test assesses volume.

Sigmize handles these through independent experiments so you get clean, reliable data on which changes produce the strongest improvement.

Enable heatmaps and you’ll get an extra layer of data from which to base your decisions.

You don’t lose visibility. You don’t merge tests accidentally. You simply pull both levers in a controlled way.

Why It Matters More As Your Store Matures

Early growth often comes from simple fixes. But sustainable growth comes from layered improvements that stack over time. 

When you’re testing both value and volume regularly, you create a steady rhythm.

• Some tests increase revenue immediately.
• Some tests stabilize the funnel for long term gains.
• Some tests do both.

That’s when growth stops feeling random and starts feeling predictable.

Why Volume Still Matters Most

If you’re thinking about long term health, volume gives you more buyers, which leads to more repeat purchases, stronger word of mouth and a larger audience. 

That lowers customer acquisition costs and stabilizes the business even when traffic costs rise.

How To Use Sigmize To Find High Impact Blockers

Watch 10 non-purchase sessions. Look for frustration signals like repeated back and forth, confusion or broken flows. 

Then use an experiment to change the problematic section.

For example, if shoppers repeatedly click an image expecting it to zoom but nothing happens, you can test a zoom enabled variant. 

If they complete only half of your checkout form, you can test a shorter, more optimized version.

Small fixes often unlock meaningful lifts in conversion.

Start Testing and Grow With Confidence

You already know value can lift revenue. You already know volume brings stability. 

When both improve together, your store becomes stronger, more stable and far more profitable.

Most brands stop at opinions. They debate headlines, shuffle bundles by instinct or copy whatever their competitors seem to be doing. 

But the stores that grow consistently behave differently. They test their ideas so every improvement is backed by real behavior, not hunches.

Sigmize gives you the tools to do that. 

You can test pricing ideas, bundle layouts, hero sections, checkout changes or any part of your sales funnel without breaking anything or confusing visitors. 

You can watch how real shoppers move through your pages, see where they hesitate and fix those moments with targeted experiments.

If you want predictable growth in both value and volume, don’t guess.

Test your way to higher profit.

Try Sigmize and start growing with confidence.