Bath · Bristol · London
For marketing directors and CFOs

Advertising profit calculators.

The sums a marketing director and a finance director should agree on before a budget is signed off, each with its formula on the page so the answer can be checked by hand. Nothing you enter leaves your browser.

The calculators

Does the advertising pay?

ROAS = revenue ÷ ad spend

ROAS calculator

Return on ad spend, the break-even ROAS your margin needs, and whether the ads made money.

POAS = (revenue − product costs) ÷ ad spend

POAS calculator

Profit on ad spend: the measure that accounts for what your products cost.

ACoS = ad spend ÷ ad-credited sales

ACoS calculator

Amazon ACoS, TACoS and the break-even ACoS your margin allows.

Break-even cost per lead = customer gross profit × close rate

Cost per lead calculator

The most you can pay per enquiry and per click, from what a customer is worth.

MER = total revenue ÷ total marketing spend

Marketing efficiency ratio calculator

Total revenue against total marketing spend: the check no ad platform can inflate.

Read next

Before and after the sums.

Your own accounts

Numbers that do not add up in your own accounts?

A review starts by checking what the platforms are being told, and whether it matches the books.

The Crane Standard

The senior read,
once a week.

Most marketing newsletters are noise on a schedule. This is not that. Once a week I send a short, considered read on the shifts that actually change what you should do, across the AI shift, PPC, technical SEO and analytics. Filtered, weighted and signed off by me before it goes out. The judgement is mine, and now you can hear every edition in my own voice.

Nic CraneFounder, The Crane Consultancy

Topics you want

All three lands every Tuesday. Choose a selection and you get only those, as and when they publish, always on a Tuesday.

One considered email a week, edited and signed off by Nic. No filler, no sharing, unsubscribe in a click. By subscribing you agree to our Privacy Policy.

Prefer LinkedIn? Subscribe on LinkedIn instead, the same edition, delivered by push and email.