Calculating from PPC data — Part 2.
Reading data is half the job. Calculating from it — break-evens, target bids, allowable losses on launch — is the other half. Episode 22 walks the four calculations every operator should be able to do without looking up.
Part 1 of this two-parter covered how to read Amazon's PPC data without over-fitting noise. Part 2 covers what to calculate from it. There are four calculations every PPC operator should be able to do without looking up the formula: break-even ACOS, max profitable bid, daily budget for a unit target, and allowable loss per launch order.
Break-even ACOS
The ACOS at which one PPC order generates zero contribution-margin profit:
break-even ACOS = contribution margin % of ASP
If the contribution margin on a €25 ASP product is €6 (24 %), the break-even ACOS is 24 %. Above 24 %, every additional PPC order loses money on contribution; below 24 %, it makes money.
Max profitable bid
Already covered in Episode 11, repeated here as part of the four core calculations:
max profitable bid = ASP × CVR × target ACOS
Plug your own ASP, the keyword's CVR, and the target ACOS for the goal you're pursuing.
Daily budget for a unit target
Already covered in Episode 14, repeated here:
daily budget = target PPC orders × (aCPC / CVR)
This is the single calculation operators most often skip. Without it, "increase the budget" is a guess.
Allowable loss per launch order
For launches, you accept losing money per order in exchange for rank. The allowable loss is bounded by the downstream contribution you expect from the rank lift:
allowable loss per launch order = expected post-launch organic orders × steady-state contribution margin
If a launch order is expected to drive 1.5 organic orders over the following 90 days, and steady-state contribution margin is €6, you can lose up to €9 per launch order and still break even on the launch investment. That number is the cap on launch ACOS. Without it, launch budgets spiral.
The discipline
These four calculations are not optional. They are the floor of professional PPC operations. Every bid change should be defensible against at least one of them. If none of them justify the change, the change is a guess — and guesses cost real money on a marketplace this competitive.
Watch Episode 22: Ansätze Werbedaten zu berechnen — PART 2 (German)
The German walkthrough — calculating from PPC data, part 2.
Your unit economics, on every campaign tile.
AMALYZE pre-computes break-even ACOS, max profitable bid, and incremental unit cost for every ASIN — so the maths stops being a side project.