Marketing reports can tell you how many people saw an advertisement, visited your website or submitted an enquiry. The more useful question is what happened next.

Did those enquiries become customers? Did customers return? Did the sales leave enough margin to justify the investment?

Choosing the right marketing metrics starts with the business decision you need to make. For retailers, service businesses and e-commerce brands, a practical measurement framework should connect customer acquisition, conversion, retention and profitability.

Start with the decision, then choose the metric

A metric becomes useful when it helps you decide what to continue, improve or investigate.

Before building a dashboard, identify your current priority.

Choose a small set that reflects your business model. Define each metric clearly and use consistent reporting periods.

1. Qualified enquiries: are you attracting suitable prospects?

For a service business, enquiry volume is only part of the picture.

A qualified enquiry meets agreed criteria, such as a relevant need, suitable location and a reasonable fit with your service. Your sales team should help define those criteria.

Cost per qualified lead = Relevant campaign cost ÷ Qualified leads generated

Suppose a campaign costs ₹20,000 and generates 100 enquiries, of which 25 meet your qualification criteria. The cost per enquiry is ₹200, while the cost per qualified lead is ₹800.

These figures describe different things. Tracking both helps you examine whether changes in targeting or messaging improve the quality of demand.

All numerical examples in this article are illustrative, not industry benchmarks or Caldun client results.

2. Conversion rate: where does interest become action?

A conversion rate measures the proportion of a defined group that completes a specific action.

For a service business, one useful definition is:

Qualified-enquiry-to-client conversion rate = Clients won from an enquiry group ÷ Qualified enquiries in that group × 100

If 40 qualified enquiries eventually produce eight clients, the conversion rate is 20%.

For an online store, you might track the percentage of sessions that include a purchase. Use your analytics platform’s documented definition consistently: sessions, visitors and orders are different denominators.

Allow enough time for conversions to happen. Comparing this month’s enquiries with this month’s sales can be misleading when customers take several weeks to decide.

A change in conversion rate should prompt investigation into audience fit, offer clarity, pricing, customer experience and follow-up.

3. Customer acquisition cost: what does a new customer cost?

Customer acquisition cost, or CAC, connects acquisition spending to the number of new customers gained.

CAC = Sales and marketing acquisition costs ÷ New customers acquired

Include the relevant costs of acquiring customers, rather than advertising spend alone. Depending on your business, this may include creative production, agency fees, software and acquisition-related staff costs. Shopify’s guidance likewise distinguishes full acquisition costs from a narrower advertising calculation.

If acquisition costs total ₹60,000 and produce 30 new customers, CAC is ₹2,000.

Document which costs you include. Where spending also supports retention or general brand building, explain your allocation method instead of presenting an uncertain figure as exact.

A sustainable CAC depends on the contribution customers generate and how quickly acquisition costs are recovered.

4. Average order value: how much does each purchase generate?

Average order value, or AOV, shows the average revenue generated per order.

AOV = Revenue ÷ Number of orders

This is the basic calculation described in Shopify’s measurement guidance.

For example, ₹3,00,000 in revenue across 200 orders produces an AOV of ₹1,500.

For internal reporting, state how you treat discounts, refunds, taxes and shipping charges, and keep that treatment consistent.

Examine AOV alongside margin. A promotion may increase basket size while reducing the amount the business earns from each order.

Product recommendations, bundles and purchase thresholds should therefore be assessed on their overall commercial effect.

5. Repeat purchases: are customers returning?

Repeat purchases can help you understand whether customer relationships continue beyond the first transaction.

For a clear starting measure, track a defined customer group over a fixed period:

90-day repurchase rate = First-time customers who purchase again within 90 days ÷ First-time customers in the original group × 100

Only compare groups that have had the full observation period.

If 100 customers made their first purchase in January and 24 returned within 90 days, that group’s 90-day repurchase rate is 24%.

Choose a timeframe appropriate to your product. A replenishable personal-care product and a piece of furniture have different buying cycles. For some service businesses, renewal or repeat-engagement rates will be more useful.

Investigate repeat behaviour alongside customer feedback, product experience and follow-up communication.

6. ROAS: what revenue is attributed to advertising?

Return on ad spend compares revenue attributed to advertising with the amount spent on those advertisements.

ROAS = Ad-attributed revenue ÷ Advertising spend

If an advertising platform attributes ₹2,00,000 in revenue to ₹50,000 of spend, reported ROAS is 4×.

ROAS does not account for all the costs of fulfilling those sales or running the business, so it should not be treated as profit. Shopify’s guidance makes this distinction explicit.

Also check what your advertising account records as conversion value. Google Ads can use values representing revenue, margins or other assigned business values; a value-to-cost ratio needs to be interpreted accordingly.

Avoid adding revenue attributed by different advertising platforms without checking for overlap. More than one platform may claim involvement in the same purchase.

7. Contribution: what remains after the relevant costs?

To assess commercial performance, connect marketing reports with your sales and cost records.

One useful internal measure is:

Contribution after marketing = Net revenue − Variable fulfilment costs − Marketing costs included in the analysis

Define each cost category and avoid counting the same expense twice.

Consider an illustrative campaign with:

• Net revenue: ₹2,00,000

• Variable costs associated with those sales: ₹1,20,000

• Advertising spend: ₹50,000

The remaining contribution is ₹30,000 before fixed overheads and any other excluded expenses.

This calculation shows why a strong-looking revenue figure needs cost context. It also does not establish that advertising caused every sale included in the analysis.

What about reach, clicks and engagement?

These metrics can help explain how marketing is working.

Reach describes exposure. Click-through rate can help assess response to a message. Engagement can reveal which content attracts attention.

Use them alongside the next meaningful action. If clicks increase but suitable enquiries do not, investigate the audience, landing page, offer and tracking before deciding what caused the difference.

A diagnostic metric earns its place when it helps explain a business outcome.

Build a dashboard you can act on

Begin with one business goal, a few supporting metrics and a clear review routine.

For every metric, record:

• Its definition and data source.

• The reporting period or customer group.

• The current baseline.

• The person responsible.

• The decision it should inform.

Compare similar periods and consider seasonal promotions, stock availability, pricing changes and sales cycles. Write down the action arising from each review.

The purpose of marketing measurement is to make your next decision better informed.

Connect marketing performance with business growth

Caldun Consulting helps businesses define meaningful marketing measures, interpret performance and identify practical priorities for improvement.

Request a consultation