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Site economics · Per-participant model

What is a participant worth?

Trace a participant's value from gross visit revenue through margin, overhead, screen failure, and dropout — then decide how much of that value you can afford to spend acquiring them.

Your numbers

Drag the sliders to match your site.

$1,200
10

60%
20%

25%
15%
Expected value of a participant
$3,330
Revenue per completer $12,000
Net margin 40% · Effective yield 69.4%

Where the value goes

Revenue Erosion Expected value
Gross profit
$7,200
Net profit / completer
$4,800
Screen pass rate
75%
Completion factor
92.5%

Invest to acquire

How much of the expected value goes to recruitment?
30%
Max spend to acquire $999
Value retained $2,331
Every $1 spent on recruitment must return $3.33 in expected participant value to break even at this budget.