The YouTube Ads course
Module 6 - Turnover is vanity
Turnover is vanity and profit is sanity because Google will take whatever percentage of your figures you feed it, so a media buyer's job is to teach Google your real profit, not your turnover, and to scale only within that discipline.
Last updated 31 August 2026
Running time 11:17Watch it
What does this video cover?
- 01Google wants to know every detail of your business, because the more it knows, the more of your budget it will take, so there is a fine line between the absolute truth and the truth you choose to feed it.
- 02Telling Google that a £100 sale is worth £100 to you, when your actual profit on it is £30, means Google will try to take its percentage of the wrong number.
- 03Amazon and eBay both take a percentage of a seller's turnover, typically Amazon takes somewhere between 13 and 18 percent or more, and Google Ads works the same way with your ad spend.
- 04Bigger, more established advertisers who spend consistently get better conditions and lower fees, in the same way a premier Amazon partner selling millions of pounds enjoys a lower percentage taken than a newcomer.
- 05Google does not want you to fail. It wants long-term advertisers who scale properly, feed it good conversion data, and stay committed, because that is how it keeps its own platform's quality up and its own revenue growing.
- 06Even a business with strong margins probably has room to save 20 to 30 percent of ad budget, or generate 20 to 30 percent more turnover, by sticking to the system rather than guessing.
- 07A good media buyer moves to a target cost of acquisition model, teaches Google the profit figure it's happy with, and dials the budget back and tells Google off, so to speak, when results fall outside that.
Full transcript
Why is turnover vanity and profit sanity?
Turnover is vanity because it isn't the number that matters, profit is, and teaching Google your real numbers properly, without giving everything away, is one of the most important things a media buyer learns.
Google would love to know every part of your business, because if you told it every sale makes you £100 profit, it would decide it deserves to take its percentage of that £100. As a media buyer, you are constantly battling Google not to spend more of your budget than you want it to. If you continually tell Google the absolute truth about your turnover, rather than the truth about your actual profit, you end up giving Google a percentage of the wrong figure. If a product sells for £100 and makes £30 profit, telling Google a conversion is worth £100 is not correct. What Google needs to understand is the £30 profit figure, not the £100 turnover figure, so it can take a percentage of profit rather than a percentage of turnover.
How does Google's percentage model actually work?
Google, like Amazon and eBay, takes a percentage of your sale, and the more you spend and scale with it, the better the terms you get.
Amazon typically takes between 13 and 18 percent, or sometimes more, of a seller's sale, and eBay works on a similar model, since eBay was arguably the original version of taking a percentage of the sale. Using Google as an advertising partner doesn't mean it works any differently, it is absolutely geared up to work with businesses that want to scale and are willing to give it a percentage of their turnover. So the real question is whether you want to give Google a percentage of turnover or a percentage of profit. Working from profit is achievable, because it can be built into your margin and lets you scale properly.
If you look at Amazon's model, a premier partner selling millions of pounds worth of product enjoys a lower percentage taken from their account than someone just joining the platform. The same applies with Google Ads: a newcomer to YouTube and Google will pay a higher percentage while they learn, but Google will give them the ability to scale over time. Google doesn't want low quality advertisers, people chasing a quick buck or offering shoddy products or scams, because it wants to keep the quality of what it shows the public up. Advertisers who spend consistently and properly enjoy more space, better conditions and a smaller effective fee, but you have to pay to join that club.
Why does Google want you to succeed, but only on its terms?
Google wants long-term advertisers, because a business that scales properly and keeps spending is worth more to Google over time, but it will only let you scale within the framework it has set out.
Feeding Google the conversion data properly, over the long term, is what allows you to scale. Google doesn't want you to fail, it wants you to grow, potentially into tens or hundreds of thousands, or millions, of spend, and at that point it wants you to keep doing well, giving you an advantage over other advertisers in your market. It's the businesses that do it properly, that build the conversion data in correctly, that feed Google that data properly, that win and are able to scale. Nobody should expect a decent return or a profit from day one, this is an investment of time as much as money, and if you're prepared to put that time in, the advantage over other advertisers who aren't is significant. Being in control of your campaigns and understanding your profit, not just your turnover, and feeding that data into Google properly, is what drives that advantage.
Google will ultimately only let you succeed within the framework it sets: you have to teach it, feed it the data, have good collateral, good adverts that people engage with, and a good product. Fall down on any of those steps and you have a real disadvantage, and you'll struggle to scale properly.
How do you actually teach Google properly?
Feeding Google not misinformation, but the profit information you want it to work with, rather than raw turnover, is the first step, and from there you learn where Google tends to get greedy and dial things back accordingly.
It's easy to get an early level of success, because Google wants new advertisers to get going and to enjoy the platform, wants people to think YouTube ads are fantastic. It gets harder at the scaling stage, and that only comes through testing, learning, sticking within the rules, and setting bids properly, knowing what's behind a decision rather than guessing. Even a business making a healthy margin on its products likely has room to save 20 to 30 percent of its ad budget, or generate 20 to 30 percent more turnover, by following the system properly.
Moving to a target cost of acquisition model, teaching Google the profit figure you're happy with, and then dialling the budget back and, in effect, telling Google off when it isn't delivering what you want, is what a good media buyer does: improving placements, tweaking bids, making sure Google understands where it's overstepping the mark. Understanding that the goal is profit, not turnover, and teaching Google the numbers you want it to know, are the keys to making a profit consistently from these campaigns.
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