Investing in marketing without measuring the return is like sailing through fog: you move forward, but without knowing whether you're heading towards a safe harbour or straight into the rocks. In the competitive B2B technology sector, where every euro in the budget counts and sales cycles are long, this uncertainty is not only uncomfortable — it’s dangerous for the business.
You face pressure to generate quality leads, nurture long-term relationships and, above all, prove to management that your efforts translate into real, measurable revenue. It’s not about vanity metrics like “likes”; it’s about actual growth.
That’s why calculating Return on Investment (ROI) is not just another administrative task. It’s your strategic compass. It’s the tool that transforms marketing from a cost centre into a clear revenue engine.
ROI: The language your whole team understands
Before diving into the “how”, let’s understand the “why”. Talking about ROI allows you to:
• Align marketing and sales: When both teams focus on a shared goal (revenue generated per customer), collaboration improves and results accelerate.
• Make data-driven decisions: Which campaign performs best? Which channel brings in the most profitable customers? ROI gives you clear answers to optimise your budget and stop investing in what doesn’t work.
• Justify your budget (and ask for more): With figures that demonstrate a positive return, budget conversations shift completely. You stop asking and start proposing an investment with a clear benefit.
What is ROI and why does it matter so much?
ROI helps you identify how much value your marketing investment generates. Its formula is simple:

Sounds easy, right? But in B2B tech marketing, the variables aren’t always obvious.
• The Investment: It’s not just ad spend. You must include everything: software tools (CRM, automation), team hours or agency fees, content creation (ebooks, webinars), etc.
• The Benefit: This is where the biggest challenge lies. A B2B customer doesn’t buy after a single ad. Their journey may last months and involve multiple stakeholders. Therefore, “benefit” is not just the first sale. The key metric here is Customer Lifetime Value (LTV).
Key strategies to calculate and optimise ROI
To navigate accurately, you need a clear map. Here are the essential strategies:
1. Set SMART objectives and meaningful metrics: The B2B path to purchase is full of important milestones. Assign an economic value to key actions such as:
• A marketing qualified lead (MQL).
• A scheduled product demo.
• The download of a technical case study.
• A subscription to a free trial.
Measuring the cost of each milestone will give you a clear view of campaign performance long before the sale closes.
2. Use multi-channel attribution models: A customer may discover you through a LinkedIn post, read three blog articles, attend a webinar and finally request a demo through a Google ad. Which channel gets the credit?
Forget last-click attribution. In B2B you need a multi-touch attribution model that distributes value across all touchpoints. Tools like HubSpot, Salesforce or even Google Analytics 4 (properly configured) are essential for mapping this complex customer journey and understanding which channels truly contribute to revenue.
3. Calculate Customer Acquisition Cost (CAC): CAC is the result of dividing your total marketing and sales investment by the number of new customers acquired in a given period.

This metric alone says little. Its real power appears when compared with LTV.
4. Estimate your customers’ Lifetime Value (LTV). LTV shows how much revenue a customer generates on average over their entire relationship with your company. A simplified formula is:

Calculating ROI is not an analytical exercise: it’s a strategy to make smarter decisions, optimise resources and connect marketing with business results.
At PGR Marketing & Technology, we help you design measurable, efficient and results-driven campaigns. Contact our team and let’s start turning your data into real growth.




