Budget tradeoffs
Compare channels and projects.
What is ROI?
ROI (Return on Investment) measures investment yield: (gain − cost) ÷ cost, often as a percentage. In digital marketing it applies to campaigns, content, or web projects by linking revenue (or margin) to media, production, and tool costs. Credible ROI needs stable definitions of gain and cost—and an explicit time window.
In one sentence
ROI shows how much you earn per dollar invested after costs.
Key points
- Basic formula: (gain − cost) ÷ cost, i.e. net profit ÷ investment.
- Clarify whether gain is revenue, margin, or pipeline value.
- ROI ≠ ROAS: ROAS often ignores non-media costs.
- Attributing gain to the right channel is the hard part.
Term at a glance
- ROI
- return on investment · marketing ROI · return
- English term
- Return on Investment
- Domain
- Marketing / strategy
- Category
- Financial metrics
- Level
- Beginner to intermediate
What does ROI mean in marketing?
A 150% ROI means each $1 invested returned $2.50, i.e. $1.50 of net gain once the investment is deducted. Since some teams quote gross return and others net gain, documenting the formula avoids false debates.
Digital projects have different horizons: comparing 30-day Ads ROI to 12-month SEO ROI without saying so skews decisions.
Finance and marketing share the same requirement: defined, traceable metrics calculated the same way quarter after quarter.
How do you calculate and use ROI?
- 01
Define gain and costs
Revenue/margin vs media + production + tools + internal time.
- 02
Pick the window
30/90 days for Ads; 6–12 months for SEO/content.
- 03
Connect data
GA4, Ads, CRM—leads through to revenue when possible.
- 04
Compare scenarios
ROI by channel and campaign to allocate budget.
A concrete example
A Meta Ads campaign costs CA$4,000 (media + creatives) and yields CA$18,000 attributed net margin → ROI = (18,000 − 4,000) / 4,000 = 350%.
What is ROI used for?
Initiative approval
Justify a redesign or SaaS subscription.
Executive reporting
Speak finance language.
Stop/continue
Cut what destroys value.
Pros and cons
- Universal language
- Forces cost/gain discipline
- Comparable across projects
- Helps prioritize
- Imperfect attribution
- May miss brand effects
- Assumption-sensitive
- Short-termism if misframed
ROI vs ROAS
| ROI | ROAS | |
|---|---|---|
| Cost scope | Often all relevant costs | Mostly media spend |
| Formula | (Gain − cost) / cost | Revenue / ad spend |
| Use | Investment decisions | Campaign steering |
| Finance rigor | Closer to P&L | Media KPI |
Why ROI matters for Quebec SMEs
Marketing budgets are finite. Explicit ROI avoids funding vanity metrics and aligns agency, leadership, and sales on the same success definition.
FAQ
Negative ROI?
Costs exceed gains in the window—analyze learning vs structural failure.
Include marketing salaries?
For serious project ROI, yes—or clearly exclude them.
SEO ROI?
Use a long window and organic conversion value (CRM).
ROI vs CAC/LTV?
CAC/LTV detail the customer unit; ROI aggregates an investment.
Multi-touch?
Document the attribution model; transparency beats false precision.
Related terms
Sources and references
Need a clear ROI frame for Ads, SEO, and projects? We can set it with your data.
Clarify ROI