How to use the Customer Acquisition Cost Calculator.
Customer acquisition cost depends on the spend window and customer definition. Align acquisition spend with the cohort it produced, and distinguish fully loaded costs from advertising spend alone.
Make the workflow fit your task.
Choose a customer cohort and acquisition period, then document the included costs and new-customer definition. Align spend with the customers it produced where possible. Show the calculation and attribution limitations, especially when sales cycles span reporting periods.
- What you provide
- Acquisition spend and attributable customer count.
- What you get
- CAC calculation with attribution assumptions stated.
See the input and the result.
Illustrative input and output · a teaching example, not a live WebAct run
Example input
The supplied quarter has USD 12,000 in acquisition costs and 80 new paying customers attributed to that period.
Completed example
Reported CAC: USD 12,000 ÷ 80 = USD 150 per new paying customer. Document included costs and attribution lag; do not label an ad-only figure fully loaded CAC.
Load this input into the prompt, then copy it to WebAct to try the task. Your result may differ from the illustration.
Decisions and troubleshooting.
Should existing customers who renew count as newly acquired customers?
Not in a new-customer CAC denominator. Define acquisition separately from retention and expansion.
Why does monthly CAC swing sharply even when spending is steady?
Customer conversion timing, small cohorts or attribution lag may shift the denominator. Review a comparable cohort or longer window.
Try it with your own source.
Replace the example with your material in the task prompt. Keep the requirements you need, then copy the task into WebAct.
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