Measuring the Value of Marketing Spend

Jason Medlin
7 days ago
4 min read

Black-and-white photo representing marketing ROI measurement and business decision-making

"Is my marketing working?"

It's a simple question. Most business owners can't answer it.

They know they're spending money. They might know how much. But whether that money is actually generating profitable revenue? That's where things get fuzzy.

I see this constantly. An owner is spending $3,000 a month on digital ads, $1,500 on SEO, $500 on social media management, and has no idea which of those is working. Or if any of them are.

They're trusting the marketing person who says "it's working" or the dashboard that shows impressions going up. But impressions don't pay the bills. Revenue does.

The Vanity Metrics Trap

Here's what most marketing reports show you:

→ Impressions (how many people saw your ad)

→ Clicks (how many people clicked)

→ Followers (how many people follow your page)

→ Engagement (likes, comments, shares)

→ Website traffic (visitors to your site)

These are vanity metrics. They look good on a report. They make you feel like something is happening. But they don't tell you whether you're making money.

You can have a million impressions and zero new customers. You can have thousands of followers who never buy anything. You can have a beautiful website with tons of traffic that doesn't convert.

Vanity metrics are what marketers show you when they can't show you revenue.

What Actually Matters

The metrics that matter connect marketing spend to actual revenue. Here are the ones you should be tracking:

Cost per lead (CPL). How much are you spending to generate each lead? If you spent $3,000 on ads and got 50 leads, your CPL is $60. This tells you the cost of getting someone to raise their hand.

Cost per acquisition (CPA). How much are you spending to acquire each customer? If those 50 leads turned into 10 customers, your CPA is $300. This is the real cost of getting a paying customer through that channel.

Customer lifetime value (CLV). How much revenue does an average customer generate over their lifetime with you? If your average customer spends $2,000 over two years, that's your CLV.

Return on ad spend (ROAS). For every dollar you spend on marketing, how much revenue comes back? If you spend $3,000 and generate $15,000 in revenue from those customers, your ROAS is 5:1.

The magic number is comparing CPA to CLV. If it costs you $300 to acquire a customer who generates $2,000 in lifetime value, that's a good investment. If it costs you $300 to acquire a customer who generates $400 in lifetime value, that's marginal at best.

Tracking the Full Picture

To measure marketing ROI properly, you need to track leads from first touch to closed revenue. This requires:

Lead source tracking. When a lead comes in, where did they come from? Google ads? Referral? Social media? Direct mail? You can't measure what you don't track. Every lead should have a source attached.

Conversion tracking. How many leads from each source actually become customers? A channel that generates 100 leads but only 2 customers is very different from a channel that generates 20 leads and 10 customers.

Revenue tracking. How much revenue came from customers acquired through each channel? Not just the first sale, but ongoing revenue if you have repeat customers.

This sounds complicated, but it doesn't have to be. A simple CRM or even a spreadsheet can work if you're disciplined about entering the data. The key is consistency: every lead gets a source, every closed deal gets tracked back to that source.

The Attribution Problem

Here's where it gets tricky. A customer rarely comes from a single marketing touch.

They might see your ad, visit your website, leave, see a retargeting ad, come back, sign up for your email list, get nurtured for three months, and finally call you after seeing a social media post.

Which channel gets credit? The first touch? The last touch? All of them equally?

For most small businesses, don't overcomplicate this. Use "first touch" or "last touch" attribution consistently and accept that it's imperfect. The goal isn't perfect measurement — it's directional insight.

You want to know: which channels are generating customers? Which aren't? Where should I spend more? Where should I cut?

When to Double Down vs. Cut

Once you're tracking the right metrics, the decisions become clearer:

Double down when a channel's CPA is significantly below your CLV. If customers from Google ads cost $200 to acquire and generate $3,000 in lifetime value, spend more there. You're printing money.

Optimize when a channel's CPA is close to your target but not quite there. Maybe the channel works but needs better targeting, better creative, or better follow-up on leads.

Cut when a channel's CPA is way above your CLV or when a channel generates leads that don't convert. Don't keep spending money hoping it will eventually work. Some channels just don't work for your business.

Test carefully when trying new channels. Set a budget and timeline for the test. Define what success looks like before you start. Measure honestly when the test period ends.

The Conversation with Your Marketer

If you work with a marketing agency or consultant, this changes the conversation.

Instead of accepting reports full of impressions and clicks, you start asking:

→ How many leads did we generate this month?

→ What was our cost per lead by channel?

→ How many of those leads became customers?

→ What's our cost per acquisition?

→ What's our return on ad spend?

A good marketer will welcome these questions. They'll help you set up tracking, share the real numbers, and optimize based on what's actually working.

A bad marketer will dodge, deflect, and keep showing you vanity metrics. That's a red flag.

Connect Marketing to Revenue

Marketing is an investment. Like any investment, it should be measured by returns, not activity.

At Bottomline Capital, we help business owners connect marketing spend to actual revenue. We set up tracking, analyze the numbers, and help you make decisions based on what's really working — not what looks good on a report.

If you're spending money on marketing and can't answer "is it working?" with real numbers, book a free consultation. Let's figure out what you're actually getting for your money.