You track marketing ROI by comparing the gross profit the work produced to everything it cost, using a few numbers you agreed on before the work began. Which numbers depends on what the marketing is meant to change, and on whether your business records the results anywhere.
“How do you calculate ROI?” is one of the first questions prospective clients ask us. The formula is simple: gain minus total cost, divided by total cost. Getting reliable inputs for it is where the work is.
Counting leads is not the same as counting money
Marketing numbers fall into three kinds. Only one of them tells you whether the business is better off.
Volume metrics show how much the work is generating. They count things:
- Organic rankings and website traffic
- Impressions (how often an ad or listing was shown) and clicks
- Form submissions and phone calls
- Number of leads
Efficiency metrics show how cheaply and effectively the work generates it:
- Cost per thousand impressions (CPM): what you pay for every thousand times an ad is shown
- Cost per click (CPC): what you pay each time someone clicks an ad
- Conversion rate: the share of visitors who take the action you want
- Cost per lead
Return metrics show whether the work made the business money. This is where ROI lives:
- Closed revenue and gross profit
- Customer acquisition cost (CAC): total sales and marketing spend divided by the number of new customers
- Customer lifetime value: what a customer is worth to you over the whole relationship
- Return on ad spend (ROAS): revenue earned for each dollar spent on ads
- ROI: gain minus total cost, divided by total cost
Rankings and traffic are instrumentation. They tell you the machinery is running. Revenue and gross profit are the scoreboard. More traffic or a lower cost per click means nothing if the leads never become customers.
A cheap lead can still be an expensive customer
Cost per lead is what it costs to get someone to raise a hand. CAC is what it costs to get someone to buy. A lead that never closes still shows up as a low cost per lead, and it can still produce an expensive customer once you divide the spend by the people who actually paid.
CAC is most useful next to customer lifetime value, because the pair shows whether a customer is worth more than it cost to win them. Volume and efficiency metrics tell you the work is running well. Return metrics tell you it was worth doing.
Pick the lever before you pick the metrics
A business can grow in three ways, and each one has its own measures.
1. Get more customers. Volume: rankings, traffic, calls, form submissions, leads. Efficiency: conversion rate, cost per lead. Return: revenue from new customers, CAC.
2. Get more from current customers. Volume: repeat purchases, orders per year. Return: customer lifetime value, average order value, retention.
3. Operate better. Efficiency: faster lead-to-close, faster delivery. Return: lower churn, more referrals, more reviews, lower operating costs.
Before any work starts, agree on which lever you are trying to move, choose two or three measures for it, and write down where they stand today.
The numbers that matter most live in your systems
We can track volume and efficiency metrics ourselves. Search tools, ad platforms, analytics, and call tracking give us those directly.
Return metrics usually live in your CRM (the software where your team logs leads and sales) or your ERP (the system that runs orders, billing, and inventory). That is where you find close rate, the number of new customers CAC depends on, customer value, repeat orders, and churn. Your staff manages those systems, and we work alongside them. Setting up that measurement layer underneath revenue is the job of analytics and revenue operations.
You don’t need to track everything
There are dozens of metrics we could track, and no business needs all of them, at every level, for every goal. Many businesses have grown without detailed data, and yours can too. Good data makes decisions sharper. Plenty of owners have done well without it.
The standard depends on the questions you want answered. If you want to know exactly where each marketing dollar goes and what it did for the business, that takes the right systems, and many of the numbers that answer those questions are recorded in systems you own. We can’t estimate or fill in those numbers for you, and where the data is thin we will say so rather than guess.
So if you want marketing held to an ROI standard, start by putting in place the systems and habits that record the outcomes. If you don’t have a CRM or ERP yet, or your team doesn’t use it consistently, begin there. You don’t need to build everything at once. Pick the few measures that matter most for your goal, set them up properly, and add more over time.
Four things to settle before the work starts
- A baseline. Without a “before” number, nobody can show change.
- Credit. Many sales come from more than one source, such as search, a referral, and a phone call. Agree on how those are counted, and accept that attribution is an estimate, not a receipt.
- Timing. SEO and brand work take months, and long sales cycles push revenue out further. The review window should match your sales cycle.
- Who owns what. Marketing influences how many leads you get and how good they are. Your team follows up and closes. Both sides should know which numbers belong to whom.
When you calculate the return, count the full cost: ad spend, outside fees, tools, and your own team’s time. Use gross profit instead of revenue if you can. A sale that looks good at the top line can look thin once the cost of delivering it comes out.
Some of the return never reaches a spreadsheet
Some value is real but harder to count: a team that looks professional at a trade show, a brand customers are proud to be associated with, and confidence that your marketing is working. Name these at the start so they count as part of the value instead of getting argued about later.
The short version
Volume metrics show how much the work is generating. Efficiency metrics show how well. Return metrics show whether it paid off. We report on the first two with our own tools. The third depends on systems your business owns, so the more of them you have in place and use, the more precisely the return can be shown.
If you want to try this on your own business this week, do two things. Write down which of the three levers you most want to move, and check whether your CRM or ERP can tell you today how many new customers you won last quarter and what each one cost. If it can, you already have a baseline. If it can’t, that gap is the first thing to fix.