PPC Advertising Success: 3 Things to Know

PPC Advertising Success: Why ROAS Isn’t the Most Important Metric

If you’ve spent any time around PPC advertising, you’ve probably heard the same phrase repeated over and over:

“What’s the ROAS?”

ROAS (Return on Ad Spend) has become the default scorecard for measuring the success of Google Ads, Microsoft Ads, Shopping campaigns, Performance Max campaigns, and virtually every other form of digital advertising.

And while ROAS is an important metric, it’s not the most important metric.

In fact, if you focus exclusively on ROAS, you can reach decisions that are counterproductive to your business.

That statement surprises many advertisers because agencies, consultants, and platform representatives often present ROAS as the ultimate measure of success. But business owners don’t deposit ROAS percentages into their bank accounts. They deposit currency.

The real question isn’t “How efficient was my advertising?”, it is:

“How much incremental revenue did the advertising generate for the business?”

That’s a different conversation.

What ROAS Actually Measures

ROAS is simply a ratio. The calculation is straightforward:

ROAS = Revenue Generated – Advertising Cost

For example:

• Advertising Spend: $3,000
• Revenue Generated: $21,000

Your ROAS would be:

$21,000 – $3,000 = 7.0

It’s normally expressed as a percentage, so here, that’s a 700% ROAS.

That sounds fantastic – and it is. The ROAS is telling us that every dollar invested in advertising generated seven dollars in revenue.

That’s valuable information. But notice what ROAS doesn’t tell us:

It doesn’t tell us the revenue contribution onto the top line due to advertising. And it certainly doesn’t tell us whether a campaign is configured in a way that benefits a business in the best way possible.

ROAS measures ad spend efficiency, but it doesn’t measure business impact.

The Problem with Chasing ROAS

Imagine two campaigns.

Campaign A

• Ad Spend: $1,000
• Revenue: $10,000
• ROAS: 1,000%

Campaign B

• Ad Spend: $20,000
• Revenue: $120,000
• ROAS: 600%

Most PPC reports would highlight Campaign A because the ROAS is higher – point to the 1,000% return and declare victory.

But let’s look at the dollars involved.

Campaign A generated: $10,000 – $1,000 = $9,000

Campaign B generated: $120,000 – $20,000 = $100,000

Which campaign would you rather own? Business owners see that immediatly.

Campaign B may be less efficient, but it contributes more dollar volume to the business.

This is where campaign managers can go wrong. They optimize for ROAS instead of optimizing for growth.

In pursuit of a higher ROAS ratio, they inadvertantly may restrict traffic, reduce exposure, eliminate keyword opportunities, and ultimately shrink the business.

The Metric We Care About Most

At Blastoff Advertising, we pay close attention to ROAS, but it’s a secondary metric. We prioritize what we call LIFT – the incremental cash flow which is generated by advertising.

For eCommerce advertisers, the calculation is simple:

Advertising Cash Flow (LIFT) = Revenue Generated minus Advertising Cost

Using our earlier example:

• Revenue: $21,000
• Advertising Cost: $3,000

Advertising Cash Flow: $21,000 – $3,000 = $18,000

That’s the money being contributed to the business before product costs, payroll, overhead, and other operating expenses.

For lead generation advertisers, the calculation is similar:

Advertising Cash Flow = Conversion Value – Advertising Cost

The concept remains exactly the same.

We are measuring dollars contributed to the business – not simply efficiency ratios.

Because at the end of the month, businesses operate on dollars, not percentages.

Why High ROAS Can Actually Hurt Growth

One of the most common situations we encounter is a client who has been trained to believe that higher ROAS is always better. Unfortunately, that’s not necessarily true.

Suppose a campaign is producing a 10:1 ROAS. Sounds great.

Now suppose that by increasing budget and expanding reach, the campaign could generate three times more revenue at a 7:1 ROAS.

Many advertisers will optimize for ROAS, so they’ll run that campaign at 10:1 (1,000%) ROAS.

But the business may have generated substantially more profit.

A lower ROAS can often be the result of pursuing additional market share.

And additional market share is frequently where the largest growth opportunities exist.

This is especially true in competitive industries where the best prospects are often the most expensive prospects.

Legal services, healthcare, home services, financial services, B2B lead generation, and many eCommerce categories all exhibit this behavior.

The final increments of growth are rarely the cheapest; they’re more often the most expensive.

The question is whether they are still profitable. If they are, they may be worth pursuing even if ROAS declines.

Why Agencies Love Reporting ROAS

There is another reason ROAS dominates PPC reporting.

It’s easy. It’s easy to calculate, easy to explain, and frankly, it often sounds better. Because it’s called “Return on” ad spend, it’s easy to assume it’s a measure of the return. But ROAS is a misleading name. It doesn’t measure the “return on” ad spend – that’s what LIFT does. ROAS is a ratio that measures ad spend efficiency. In brick and mortar advertising, it’s known as “MER” – marketing efficiency ratio.

A single number can be dropped into a report and instantly interpreted as good or bad.

But business owners need more than that.

They need to know:

• How much incremental revenue was generated by the ad spend?
• How much advertising spend was required?
• What contribution did our advertising make?
• Is growth accelerating or slowing?
• Are we capturing more market share?
• Are we maximizing profit opportunity?

Those questions require a focus on more metrics, not just an ROAS value.

The Way We Evaluate PPC Performance

At Blastoff Advertising, we evaluate PPC campaigns through the lens of business performance first and advertising metrics second.

That means we look at:

• Revenue (eCommerce)
• Lead value (Lead Generation)
• Advertising cost
• Advertising cash flow
• Cost per acquisition
• Conversion values and rates
• Market share opportunities
• Long-term scalability

ROAS absolutely remains part of the discussion, because cash is a precious resource, and a campaign with poor efficiency can’t scale forever. Tools like automated bidding can help balance efficiency and volume – but only when the underlying goal is set correctly.

But ROAS is not the final scorecard, so our objective isn’t to produce the highest possible ROAS. Our objective is to help clients generate the greatest sustainable financial return from their advertising investment.

Sometimes that means improving ROAS, but more often it means accepting a slightly lower ROAS in exchange for significantly greater revenue and profit.

The correct answer depends on the business, the industry, supply and demand conditions, and the growth objectives. For a deeper look at how we approach ongoing performance optimization and campaign management, those pages cover the process in detail.

The Bottom Line

ROAS is an important PPC metric. But it is not the most important metric.

ROAS measures efficiency. Businesses survive on cash flow. So, when evaluating a PPC campaign, we don’t ask only:

“What was the ROAS?”

We also ask:

“How much revenue, incrementally, did the campaign generate for the business?”

That’s the number that pays employees, keeps the doors open, and funds growth. It’s the metric that matters most.

Let’s Take a New Look at Your Advertising Metrics

If you’d like help evaluating the true financial performance of your Google Ads or Microsoft Ads campaigns, contact Blastoff Advertising. We’d be happy to review your account, calculate the real contribution of your advertising efforts, and identify opportunities to improve both efficiency and growth.