Step 1
Forecast variance equals actual minus forecast, divided by forecast.
Public tool method · Version 1.0.0
Use this method when you need to answer: Does the growth narrative match the mechanics producing revenue? It turns the evidence you supply into a Revenue dependency model by applying explicit, versioned decision rules. The result is not a benchmark or certification. It shows the strongest evidence, riskiest input, next action, owner, and review date so another reader can inspect and challenge the decision.
Last material review 2026-08-08 · Next review 2026-11-06
Question answered
The revenue dependency model compares concentration, recurring share, forecast variance, attribution confidence, retention, and the narrative claim.
Forecast variance equals actual minus forecast, divided by forecast.
A dependency is fragile when channel share is at least 40%, recurring share is below 50%, absolute forecast variance is at least 20%, or attribution confidence is below 50%.
Estimated repeatable share sums each revenue share multiplied by its recurring share.
Record the required inputs and label missing or estimated evidence before classification.
Apply the versioned decision rule and preserve the reason behind each row state.
A dependency model reveals fragile growth hidden by aggregate narrative.
Primary metric: Dependency-model export or Revenue Story workshop click
Worked example and modes
Distribution package
Blank CSV template90-second demonstrationThree share treatmentsPlain-language answer
<iframe src="https://petrichorgrowth.com/tools/revenue-story-audit/embed.html" title="Revenue Story" loading="lazy" width="100%" height="900"></iframe>
<p>Source: <a href="https://petrichorgrowth.com/tools/revenue-story-audit">Revenue Story by Petrichor</a></p>Ownership and change control
Petrichor product
Petrichor strategy
Petrichor research
Petrichor operations
Petrichor web platform
Petrichor growth
Petrichor client experience
A material method change requires a reason, impact note, fixture rerun, semantic-version increment, and public entry in the method change log.
Related decision methods
Decide which market signals require action, observation, or deliberate disregard.
Build a transparent market estimate from named accounts, adoption, and economics.
Estimate how much planned growth spend is exposed to an unresolved relevance problem.
Signal Triage answerBottom-Up TAM Builder answerSpend-at-Risk Calculator answer
Method questions
A versioned Revenue dependency model with visible reasoning, evidence status, next action, ownership, and review date.
Only the structured decision evidence named by the instrument. Missing or estimated inputs remain visible in the result.
No. It applies deterministic rules to the user's inputs and does not compare one customer with another.
The current method is reviewed at least every 90 days. Material changes require new fixtures, a version increment, and a public change note.
When the unresolved decision requires team challenge, evidence reconciliation, dissent, ownership, and an organizational commitment.