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CalculatorK02

Net intervention value

Estimate an intervention’s net value from your contribution and cost assumptions.

A view of T2 Economics and benefits ledger · Inputs stay in this browser tab; nothing is uploaded or stored.

Calculation method · version 1.0.0

contribution - excluded_cost; retention contribution = (treatment_rate - comparator_rate) * actually_treated * additional_contribution_per_account

Checks and limitations
Input checks
  • rates between 0 and 1
  • actually_treated positive whole number
  • excluded costs >=0 and counted once
  • scope required
  • rollout scenario separately labelled
Method reference
Diagnostic and calculator methods § 7. K02 Net intervention value
§6
This ratio is not decision-reliable because the plausible effect includes zero.
§9
No supported positive incremental acquisition; no negative-CAC success
§6
If only attributed data are available, label the output Attributed CAC and state that it does not isolate causality.
§6
This is propagation of a supplied range, not a newly calculated confidence interval.
§7
If evidence is observational or forecast, label the result a scenario/association, not causal profit.
§7
The rate difference is an estimate, not an observed count of individually “saved” customers.
§7
Forecast/rollout inputs retain their scenario label and are never presented as realised cash.
§8
Show signed loss plainly; no cosmetic success state
§7
The tool validates completeness and labels; it cannot verify the supplied method or prove causality.
Mode
currency

May be negative.

currency

≥ 0; costs not already inside contribution

Required for a causal estimate.

Upper-case currency code, e.g. CU or NZD. No conversion is performed.

Required for a causal estimate.