How to set a target cost per result for each client
Guide · 2 min read · Updated 2026-10-06 · By the Cofoundr team
Start from what a result is worth to the client: margin per sale, or lead value times close rate. The most you can pay per result and still make money is your ceiling. Set the target below it, write it down with the date, and review it as the business changes.
Without a target, every result is judged by feel, and a good month and a bad month look the same. A target cost per result turns the account into something you can score, alert on and report against. It also keeps conversations with the client about what good looks like, not about opinions.
Start from what a result is worth
- Online sales: average order value times gross margin gives the margin per order.
- Leads: value of a customer times the share of leads that become customers, then times margin.
- Apps: lifetime value of an installed user, if you have it, or a value the client agrees.
Find the ceiling and set the target below it
The most the client can pay per result and still break even is the ceiling. Your target should sit below it, leaving room for profit and for the uncertainty in your estimates. For online sales, break-even return on ad spend is one divided by the gross margin.
A worked example with made-up numbers
- Illustration only: a lead is worth 10,000 in margin to the client when it becomes a customer.
- One in ten leads becomes a customer, so a lead is worth about 1,000.
- The break-even cost per lead is therefore about 1,000.
- A target of 600 leaves a profit buffer. Use your client's real numbers in the same steps.
Agree it in writing
- Record the target and the date it was agreed.
- Agree how long results can miss it before you act together.
- Agree who can change it and when it is reviewed.
If you have no target yet
Begin with the account's own recent average as a working baseline, and improve it into a real target as soon as you have the economics. It is better to start with a rough target than none.
Use it every day
- Show the target beside the result in every report.
- Set alerts for when cost per result climbs above it.
- Review it every quarter, because margins and offers change.
Where Cofoundr helps
In Cofoundr, you set a target for each client in their workspace. Scoring, wasted spend checks and alerts use it, and if no target is set, Cofoundr falls back on the account's own recent average.
Free toolBreak-even cost per result and ROAS calculatorFree templateMeta Ads client onboarding checklistFrequently asked questions
What if the client cannot say what a result is worth?
Work it out together from their sales numbers, or start with the account's recent average and refine as you learn.
Should the target be the same every month?
Review it regularly. Seasonality, offers and margins can all change what a good result costs.
Is cost per result the right target for ecommerce?
Many ecommerce clients prefer a return on ad spend target. Use whichever the client uses to run the business, and report in those terms.