# Customer economics: AOV, repeat rate and lifetime valuelifetime valueLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète →
A direct-to-consumer fashion brand spends €40 to acquire a customer who buys a €65 dress once and never returns. On that single order, the brand loses money. Whether that €40 was smart or reckless depends entirely on one question: how much is that customer worth over time? This lesson gives you the arithmetic to answer it.
Customer lifetime valueCustomer lifetime valueLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète → (, sometimes ) is the total profit a brand expects from one customer across their whole relationship. In fashion, three inputs drive it.
AOV is total revenue divided by number of orders in a period.
If a womenswear label books €480,000 revenue across 8,000 orders in a quarter:
AOV = €480,000 / 8,000 = €60
Fashion AOV varies wildly by segment. Fast fashion and marketplace sellers often sit in the €30 to €60 range; premium and contemporary brands frequently run €120 to €250; luxury runs into the thousands. These are typical market ranges, not fixed figures, so always measure your own.
How many times a customer buys per year. Fashion is seasonal, so this matters. A basics brand (socks, tees) might see 3 to 5 orders per year from an active customer. An occasion-wear or bridal brand might see well under 1 per year.
Two related but distinct numbers.
Do not confuse them. Repeat rate is a lifetime "did they come back at all" measure. Retention is period-over-period.
Start with the cleanest textbook formula:
CLV = AOV × Gross Margin % × Purchase Frequency (per year) × Customer Lifespan (years)
Let us build one for a contemporary knitwear brand.
CLV = €120 × 0.60 × 1.5 × 3 = €324
That €324 is gross-margin lifetime valuelifetime valueLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète →, not revenue. It is the money available to cover marketing, overhead and profit.
New analysts often build CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète → on revenue. That overstates value badly. A €120 order at 60% margin only generates €72 of gross profit. Fashion also carries returns, which in European online apparel are notoriously high (frequently estimated at 20% to 40% for online apparel, higher in Germany). Returns eat margin through shipping, restocking and write-downs. If you can, build CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète → on contribution margin (gross margingross marginGross margin is the share of revenue left after subtracting the direct cost of producing goods or services, expressed as a percentage of revenue.Voir la définition complète → minus variable fulfilment, payment and return costs) rather than raw gross margingross marginGross margin is the share of revenue left after subtracting the direct cost of producing goods or services, expressed as a percentage of revenue.Voir la définition complète →.
The lifespan approach is crude because "3 years" is a guess. A cleaner method uses retention rate directly:
CLV = (AOV × Gross Margin × Frequency) / (1 − Retention Rate)
The term 1 / (1 − Retention Rate) is the expected customer lifespan implied by your churn.
Using our knitwear brand with 65% annual retention:
Notice retention is the most powerful lever. Lift retention from 65% to 75% and the multiple jumps from 2.86 to 4.0, pushing CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète → to €432. A 10-point retention gain here adds roughly €123 of lifetime valuelifetime valueLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète → per customer, without selling a single extra item at higher price.
For a clean primer on the mechanics, Shopify's guide to customer lifetime value walks through the same logic with retail examples.
Now the hook. Customer acquisition costCustomer acquisition costCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.Voir la définition complète → (CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.Voir la définition complète →) is total sales and marketing spend divided by new customers won.
Our brand spends €40 to acquire each customer. Is that good?
LTV:CAC = €308.57 / €40 = 7.7
The widely cited rule of thumb is that a healthy ratio sits around 3:1. Below 1:1 you lose money on every customer. Around 3:1 is considered efficient. A 7.7 ratio suggests this brand is actually underspending on acquisition and could grow faster by investing more, assuming it can maintain retention and margin at scale.
More urgent for cash-tight brands: how fast does the €40 come back?
First order gross profit: €120 × 0.60 = €72.
The €72 from the very first order already exceeds the €40 CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.Voir la définition complète →. Payback is immediate, inside the first order. That is an unusually strong position. Many fashion brands only recover CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.Voir la définition complète → after the second or third order, meaning they front cash and depend on repeat behavior to survive.
Return to the opening scene. A €65 dress, 55% margin, bought once, €40 CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.Voir la définition complète →.
If that customer never returns, the brand loses money. The entire business case rests on the repeat rate. If only 25% of these buyers come back and buy again, the *average* new customer economics can still work, but the brand is effectively subsidising the 75% who leave.
Vérification des acquis
1. A brand loses money on a customer's first order but the acquisition cost may still be justified. What concept explains why this can be a sound decision?
2. What is the key distinction between repeat purchase rate and retention rate?
3. Why would an occasion-wear or bridal brand be expected to have a very low purchase frequency compared to a basics brand?
4. Select ALL correct answers about the inputs to the textbook fashion CLV formula (AOV × Gross Margin % × Purchase Frequency × Customer Lifespan).
Sélectionnez toutes les réponses correctes.
5. Select ALL correct answers about why AOV benchmarks should be interpreted carefully.
Sélectionnez toutes les réponses correctes.
Numbers only mean something in context. Here are orientation ranges to hold in your head for 2026. Treat all as market estimates that vary by brand, not precise figures.
The single most useful habit: never look at CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.Voir la définition complète → alone. A €40 CACCACCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.Voir la définition complète → is meaningless until you pair it with margin, repeat rate and payback.
🎬 [VIDEO: "Customer Lifetime ValueCustomer Lifetime ValueLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète → (CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète →/LTVLTVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète →) Explained" - youtube.com - a concise walkthrough of and : logic with worked examples]
If you want to stress-test scenarios without a spreadsheet ceremony, this tiny snippet captures the retention-based CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète → and the payback logic in one place.
def clv(aov, margin, freq, retention):
annual_gp = aov * margin * freq
lifespan = 1 / (1 - retention)
return annual_gp * lifespan
value = clv(aov=120, margin=0.60, freq=1.5, retention=0.65)
cac = 40
print(f"CLV: €{value:.2f}")
print(f"LTV:CAC = {value / cac:.1f}")
print(f"First-order payback? {120 * 0.60 >= cac}")Change retention from 0.65 to 0.75 and watch CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète → climb. That is the lever fashion CFOs obsess over.
Two cautions specific to apparel.
Seasonality distorts frequency. A coat brand may see one order per customer per winter. Measuring frequency over 90 days will understate lifetime valuelifetime valueLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète →. Always annualise, and ideally look across multiple seasons.
Returns are hidden margin killers. A brand reporting €60 AOV and 60% margin may effectively earn far less once return logistics and markdowns are stripped out. Build CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.Voir la définition complète → on contribution margin after returns wherever your data allows.