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Amazon PPC Data Analysis: What Actually Matters (From a Former Brand Owner)

  • Writer: David Stephen
    David Stephen
  • Apr 28
  • 5 min read

Updated: Jun 18

"Amazon and all related marks are trademarks of Amazon.com, Inc. or its affiliates."

Introduction

When I first started running Amazon PPC, for my own brand back in 2015, I thought I understood it.


I was:

  • Watching ACoS

  • Tweaking bids

  • Making changes fairly constantly


👉 But I wasn’t really analysing anything.


And that’s where most sellers are.


They’re:

  • Looking at numbers

  • Reacting to performance

  • But not understanding what the data is actually telling them


After 10+ years building and scaling a brand—and successfully exiting in 2020—I can tell you this:

👉 PPC success doesn’t come from running ads. It comes from understanding your data and making the right decisions consistently. It's about the Amazon PPC Data Analysis


This is the part most guides don’t explain properly.


So in this post, I’ll break down:

  • The metrics that actually matter (and what they really mean)

  • The reports I relied on when scaling

  • How I look at data now when auditing accounts

  • Why TACoS is one of the most important metrics most sellers ignore



The Amazon PPC Metrics That Actually Matter (And What They Tell You)

There’s no shortage of metrics in Amazon.


The problem isn’t access to data.


👉 It’s knowing what to focus on—and what each metric is actually telling you about your business.


🎯 Impressions

This is your visibility.


When I look at impressions, I’m not thinking:

👉 “Is this number high or low?”


I’m thinking:

👉 “Is Amazon understanding where my product should show?”

  • Low impressions → you’re not being seen (bids, relevance, or targeting issue)

  • High impressions → visibility is there, but it doesn’t mean performance


👉 Impressions are the top of the funnel. Nothing more.



🖱️ Clicks

Clicks tell you one thing:

👉 Did someone care enough to click?


If impressions are high but clicks are low:

👉 That’s not a PPC issue


👉 That’s usually:

  • Weak main image

  • Poor title

  • Pricing mismatch


👉 Ads bring visibility. Listings drive clicks.



📈 CTR (Click-Through Rate)

This is where things get more interesting.


CTR tells you:

👉 How competitive your listing is in the search results


Low CTR usually means:

  • Your product doesn’t stand out

  • Your positioning is off

  • Your offer isn’t clear


👉 I’ve seen sellers try to “fix PPC” when the issue was their listing all along



💰 CPC (Cost Per Click)

This is what you’re paying for traffic.


Most sellers obsess over CPC.

👉 That’s the wrong way to look at it.


Instead, ask:

👉 “Is this click worth what I’m paying for it?”


High CPC isn’t always bad.

👉 If it converts, it’s valuable


Low CPC isn’t always good.

👉 If it doesn’t convert, it’s wasted



💸 Spend

This is where emotions start to kick in for most sellers.


You see spend going up and think:

👉 “Something’s wrong”


But spend only matters in context.

👉 High spend with no sales = problem👉 High spend with scaling sales = growth



🛒 Sales

Simple—but often misunderstood.


Most sellers only look at:

👉 Ad-attributed sales


But from experience, I can tell you:

👉 That’s only part of the picture


This is where TACoS becomes critical (we’ll get to that shortly)



📉 ACoS

ACoS is useful—but it’s also one of the most misunderstood metrics.


It tells you:

👉 How efficient your ads are


But it does NOT tell you:

👉 How your business is performing


I’ve seen sellers pause campaigns because ACoS looked “too high”…

👉 And kill their growth completely

👉 ACoS without context is dangerous



🧠 Conversion Rate

This is one of the most important metrics in your entire account.


It tells you:

👉 How well your listing converts traffic into sales


Low conversion rate?

👉 That’s not an ads issue


👉 That’s:

  • Listing quality

  • Reviews

  • Price

  • Positioning


👉 Ads amplify your listing. They don’t fix it.


I offer FBA Coaching and Sponsored Ads Coaching and advice for UK sellers



The Metric Most Sellers Ignore (But Shouldn’t): TACoS

If there’s one metric I wish more sellers understood earlier, it’s this.


🎯 What is TACoS?

👉 Total Ad Spend ÷ Total Revenue (ads + organic)


Why I Focus on TACoS (Not Just ACoS)

When I was scaling my brand, I stopped looking at PPC in isolation.


Instead, I asked:

👉 “Is PPC helping grow the business overall?”


Because that’s what actually matters.


📊 Real Example

Let’s say:

  • £1,000 ad spend

  • £2,000 ad sales → ACoS = 50%


Most sellers panic here.


But if total revenue is:

👉 £6,000


Then:

👉 TACoS = ~16%

👉 That’s strong


Because PPC is driving organic growth.


💡 What You Want to See:

  • TACoS gradually decreasing

  • Organic sales increasing

  • PPC supporting ranking


👉 That’s how you scale properly



The Reports I Actually Use for Amazon PPC Data Analysis (And Why They Matter)

Over the years, I’ve simplified this.


You don’t need 20 reports.

👉 You need to understand a few properly.


🥇 Search Term Report (Non-Negotiable)

This is where real optimisation happens.


This shows:

👉 What customers actually searched


Not what you think they searched.


What I Look For:

  • What’s converting

  • What’s wasting money

  • What’s irrelevant


What I Do:

  • Move converting terms → Exact campaigns

  • Add negatives

  • Refine targeting

👉 This is the backbone of PPC



📊 Campaign Performance

This tells me:

👉 Where my money is going


I’m Looking For:

  • Which campaigns are working

  • Which aren’t


Actions:

  • Scale winners

  • Reduce waste



🎯 Placement Report

This is underrated.


It shows:

👉 Where conversions are actually happening


Sometimes:

👉 Top of search performs best

👉 Sometimes product pages do


Actions:

  • Increase bids where performance is strong

  • Pull back where it isn’t



🔍 Keyword-Level Data

For manual campaigns, this is key.


I’m looking at:

  • Conversion

  • Efficiency

  • Scalability


👉 This is where you refine and scale



How I Actually Analyse PPC Data

I don’t overcomplicate this.


I follow a simple process:

1. What’s Working?

👉 Scale if needed

No pointing in increasing bids if you're already the objectives required


2. What’s Wasting Money?

👉 Reduce it to decrease spend

👉 Remove it, if it's just not relevant or performing well enough to make a difference over time


3. Where’s the Opportunity?

👉 Improve it


4. Where Should Budget Go?

👉 Shift it to winners

👉 That’s it


Most sellers overcomplicate PPC.

👉 The fundamentals drive results



How Often Should You Analyse?

From experience:

  • Light check → every day to few days

  • Deep analysis → once per week


👉 Don't overreact with the light check

👉 Give changes time in order to get enough up to date data

👉 Act on the data if there's red flags



Common Mistakes I See All the Time

  • Focusing only on ACoS

  • Ignoring TACoS

  • Making decisions too quickly

  • Not using search term data

  • Trying to optimise too early

  • Not optimising at all

  • No strategy and goals to compare the data to.


👉 I’ve made a lot of these mistakes myself in the early days of my brand but quickly realised... I don't like wasting money, I needed structure and the knowledge to make the right decisions.



How This Connects to Rank, Defend & Harvest

This is where everything ties together.

  • Rank → Use data to discover

  • Defend → Protect what’s working

  • Harvest → Scale profitably


👉 Data feeds each stage



Final Thought

Amazon PPC isn’t complicated.

👉 But it does require:

  • Structure and goals

  • Patience

  • Good decision-making

  • Following a process

  • Learning


And most importantly:

👉 Understanding what your data is actually telling you



Want a Second Set of Eyes on Your PPC?

If you’re:

  • New Amazon Seller

  • Running ads but unsure what the data means

  • Spending but not scaling

  • Not sure what to change next



👉 I’ll show you exactly:

  • What’s working

  • What’s not

  • What to do next


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