Blog · Finance metrics and formulas
Industry marketing ROI figures only compare when revenue, margin, costs, and measurement periods match. Use a worked segment comparison to separate industry economics from campaign performance.
Average marketing ROI by industry is a comparison of measurement definitions before it is a comparison of performance. A revenue multiple from one industry cannot be ranked against contribution-based ROI from another. Start with the same margin basis, complete marketing costs, attribution rule, and elapsed time.
For a finance review, define attributed marketing ROI this way:
Attributed contribution = Attributed net revenue - Associated variable delivery costs
Attributed marketing ROI = (Attributed contribution - Full marketing cost) / Full marketing cost
This is a management measure. It shows the contribution associated with campaign credit after the marketing bill, before any corporate overhead excluded from the definition. It does not establish incremental profit. The existing marketing ROI versus ROAS guide explains the general formula and the revenue-versus-margin distinction.
Industry economics matter because the cost of supplying another sale differs. A distributor pays for merchandise; a professional services firm supplies billable labor; a software business has its own hosting and support costs. Aswath Damodaran's US industry margin dataset reports different gross and operating margins by sector. It provides useful economic context, but those accounting margins are not marketing ROI benchmarks or campaign contribution rates.
Use your own delivery costs. Applying an industry gross margin to every campaign can obscure product mix, service intensity, returns, and discounts.
Before using a published industry average, record the following alongside it:
| Question | What the benchmark must disclose |
|---|---|
| Who is represented? | Industry definition, geography, business size, customer type, and sample selection |
| What is the return? | Revenue, gross profit, contribution, or incremental profit |
| What did marketing cost? | Media only or media, labor, agencies, creative, and allocated shared costs |
| How mature are results? | Acquisition cohort, observation period, and treatment of later purchases |
| How was credit assigned? | Attribution rule, unmatched revenue, and overlap between channels |
| What does average mean? | Mean, median, or total return divided by total spending |
If those details are absent, treat the figure as a question to investigate rather than a budget hurdle. Do not fill missing definitions with your own assumptions. The separate average marketing ROI guide covers the general benchmark review; an industry comparison adds the margin and business-mix questions above.
There is also a causal boundary. Google's measurement documentation distinguishes standard attributed conversions from incremental conversions measured against an experiment control group. An industry table of attributed returns cannot remove that distinction. Covirage is not affiliated with Google.
Consider an illustrative US business group with retail, software, and professional services segments. These are invented operating figures to demonstrate the calculation, not surveyed industry averages. Each segment uses the same acquisition-cohort definition, the same observed revenue horizon, and the same supplied attribution rule.
The finance team reconciles credited net revenue and delivery costs to the matching sales records. Marketing supplies the full cost schedule:
| Segment | Media (USD) | Marketing labor (USD) | Agency and creative (USD) | Full marketing cost (USD) |
|---|---|---|---|---|
| Retail | 80,000 | 25,000 | 15,000 | 120,000 |
| Software | 70,000 | 30,000 | 20,000 | 120,000 |
| Professional services | 40,000 | 25,000 | 15,000 | 80,000 |
| Total | 190,000 | 80,000 | 50,000 | 320,000 |
Labor and agency allocations appear once. Delivery labor belongs in the next table's variable costs, while marketing labor belongs above.
| Segment | Credited net revenue (USD) | Variable delivery costs (USD) | Contribution (USD) | Contribution margin |
|---|---|---|---|---|
| Retail | 480,000 | 336,000 | 144,000 | 30.0% |
| Software | 300,000 | 60,000 | 240,000 | 80.0% |
| Professional services | 400,000 | 200,000 | 200,000 | 50.0% |
| Total | 1,180,000 | 596,000 | 584,000 |
Contribution is revenue minus delivery costs; contribution margin divides that contribution by revenue. The gross profit margin guide explains the accounting measure, which can include costs beyond the variable scope used here.
Now subtract marketing and divide by its full cost. Percentages are rounded to one decimal place; revenue multiples use the same full marketing denominator for comparison.
| Segment | Contribution (USD) | Marketing cost (USD) | After-marketing contribution (USD) | Marketing ROI | Revenue / marketing cost |
|---|---|---|---|---|---|
| Retail | 144,000 | 120,000 | 24,000 | 20.0% | 4.0x |
| Software | 240,000 | 120,000 | 120,000 | 100.0% | 2.5x |
| Professional services | 200,000 | 80,000 | 120,000 | 150.0% | 5.0x |
| Total | 584,000 | 320,000 | 264,000 | 82.5% |
Software produces a lower revenue multiple than retail but more after-marketing contribution. The difference follows from the supplied margins, rather than proving better marketing execution.
The total checks in both directions: 1,180,000 - 596,000 - 320,000 = 264,000, and 584,000 - 320,000 = 264,000. Total ROI is 264,000 / 320,000 = 82.5%. The simple average of segment ROI is 90.0%, which gives the smaller services marketing budget the same influence as each larger budget. Use the ratio of totals.
Ask each segment owner to explain movement against its own comparable cohorts before ranking segments. Separate changes in contribution margin from changes in acquisition cost. A promotion can raise credited revenue while lowering the contribution available to pay for marketing.
Finance owns the cost definition and reconciliation. Marketing owns campaign mapping and attribution disclosures. Segment leaders confirm capacity, customer mix, and whether the same acquisition approach can absorb more spending. A high observed return is evidence for a further test, rather than a promise about the next budget increase.
For subscription businesses, keep renewal assumptions and observed results separate; SaaS marketing ROI covers that distinction. Once a comparable baseline exists, improving marketing ROI becomes a decision about specific revenue, margin, and cost changes.
Bring a sample of your own campaign cost schedule and segment revenue and delivery-cost export, with cohort dates and supplied credit rules. Covirage maps the columns; its tools compute and check the aligned returns, and the external AI model explains the result with every figure traced to its rows. Create a free Covirage account to begin with your own files.
See customer profitability for the contribution comparison behind the marketing return.
A published average can describe its own sample, but it is not automatically a target for your business. Check who participated, whether results were self-reported, how long campaigns had to mature, and whether the numerator is revenue, gross profit, contribution, or incremental profit.
Revenue pays delivery costs before it becomes contribution. A business with a higher contribution margin can retain more from a smaller revenue multiple. Compare the contribution left after marketing cost with that marketing cost, using consistent cost classifications across the businesses.
Include the marketing labor required to produce the reported results if you want a full-cost comparison. State the allocation rule for shared salaries, agency work, and creative costs. A media-only return must be labeled separately and compared with other media-only measures.
No. Attribution assigns observed revenue to marketing activity under a credit rule. Some of those customers might have purchased without the activity. Estimating incremental profit requires evidence about that alternative outcome, such as a suitably designed experiment with a comparison group.