A funnel, not an eCPM promise
Participation means opening the wall; completion is a separate rate on actions started. Publisher payout means receipts per billable action. A survey view, click, abandonment or screenout does not count as a billable completion.
What country mix can and cannot tell you
The model weights your payout inputs by your audience mix. It assumes the same country distribution at each funnel stage. If country-level participation or completion differs, model each cohort separately and add the outputs. Availability and eligibility still vary.
How to read the range
Lower and upper change both participation and completion by the selected relative percentage, so the effects compound. Rates stop at 100%. All other inputs stay fixed. These scenarios show sensitivity, not a statistical probability or a forecast.