← Casebook / CASE 01 · PERFORMANCE

WORKED ANALYSIS / CASE 01 · PERFORMANCE

Five versions of revenue. One investment decision.

A business-first case on metric governance, channel economics and management decisions. Synthetic Northwind Retail data, not client results.

CASE 01 · PERFORMANCE · FICTIONAL ORGANISATIONANALYSIS, NOT A CLAIM OF IMPLEMENTED IMPACT
EXECUTIVE ANSWER

Do not commission another dashboard first. Agree metric contracts, reconcile the source data and make customer-acquisition decisions only against contribution—not revenue alone.

+52.2%Synthetic endpoint revenue change
+27.3%Synthetic CAC increase
+12.5 ppSynthetic repeat-rate change

01 / THE MANAGEMENT PROBLEM

More reporting had not created one trusted decision.

At fictional Northwind Retail, revenue, acquisition cost and repeat-purchase rate appeared in separate management views. The stated demand was for a consolidated KPI dashboard. That is a solution request, not yet a problem definition.

The real decision: should leadership invest in customer acquisition, retention or neither until the economics are reconciled? A dashboard that presents conflicting denominators faster would accelerate the wrong decision.

Business sponsor

Commercial / finance leadership (proposed role for this exercise).

Decision frequency

Monthly resource allocation, supported by weekly exceptions.

Base population

Illustrative 12 months, October 2025 to September 2026.

Decision constraint

No validated contribution margin, paid-channel attribution or cohort profitability in the source sample.

02 / THE DIAGNOSIS

Revenue increased. So did customer-acquisition cost.

The original Northwind dataset contains monthly revenue, order count, average order value (AOV), customer acquisition cost (CAC) and repeat rate. The comparisons below use the first and last month—not an A/B test or causal estimate.

MetricOct 2025Sep 2026ChangeWhat it does not prove
Revenue₹435.7 lakh₹663.2 lakh+52.2%Incremental profit
Orders26,09339,726+52.2%More unique buyers
AOV₹1,670₹1,670Flat at endpointsStable product mix
CAC₹429₹546+27.3%Worsening ROI without LTV
Repeat rate52.7%65.2%+12.5 percentage pointsProof retention caused growth

Source: existing ReadSigil synthetic data/cases.json. Endpoints may reflect seasonality and different customer mixes.

Exhibit 1 · Endpoint movement, indexed to 100 in October

SYNTHETIC
Revenue152
Orders152
Acquisition cost127
Average order value100
Bars share a zero-indexed reference; 152 is the maximum among these metrics, not a market benchmark. Repeat rate is excluded because percentage-point change is not comparable to the index.

Three hypotheses to investigate

  1. Volume effect: transaction count, rather than basket size, explains the endpoint revenue change mechanically.
  2. Acquisition-quality effect: increased CAC could still be rational if retained contribution per acquired customer improved; LTV and channel mix are missing.
  3. Definition effect: repeat rate may use a different customer cohort or lookback window than revenue. Alignment is necessary before attribution.

03 / THE OPTIONS

Another dashboard is the wrong first investment.

ChoiceAdvantageBinding weaknessCall
Build a new executive dashboard immediatelyVisible progressConflicting inputs surviveReject first
Outsource a new analytics platformMore capabilityNo proven problem with the existing platformDefer
Agree metric contracts and reconciliation controls firstDecisions share the same denominatorNeeds business and finance ownershipRecommend
Do nothingNo delivery costUndetected divergence continuesNot viable long term

04 / RECOMMENDED INTERVENTION

Build a governed metric layer, then a decision pack.

  1. STEP 01Contract definitions. Revenue net of returns? Paid orders or placed orders? CAC as channel spend divided by new paying customers? Repeat within what cohort and period? Agree and version each definition.
  2. STEP 02Reconcile source systems. Daily order, payment, return and advertising aggregates feed a reconciled table. All exceptions have owners and a documented waiver path.
  3. STEP 03Expose trade-offs. Revenue growth, CAC, contribution after variable cost, repeat behavior, channel mix and customer cohorts sit together with provenance.
  4. STEP 04Establish the forum. Finance signs off on margin; commercial leaders assign actions; BI owns lineage, freshness and unresolved breaks—not the business decision.
Operating principle: a single source of truth is a shared definition plus reconciliation process, not simply one database or one preferred report.

05 / VALUE & CONTROL

The dashboard is not the outcome.

Proposed acceptance thresholds below are design targets for a hypothetical pilot. They are not measured results for Northwind.

Success measureProposed acceptance testEvidence required
Metric agreement100% named critical KPIs approvedVersioned definition ledger
Source reconciliationVariance within ±0.5%, exceptions documentedAutomated source-to-report controls
FreshnessBefore the agreed morning decision cutoffAutomated load timestamps and alerts
Productivity30% fewer manual report correctionsPre/post effort and correction logs
Business valuePositive incremental contribution after acquisition expenseChannel cohorts, variable margin, valid holdout

Value equation: incremental contribution = incremental net sales × contribution margin − incremental acquisition spend − incremental operating expense. A richer-looking dashboard gets no credit by itself.

06 / DELIVERY PLAN

A 90-day roadmap with actual decision owners.

  1. DAYS 01–30Finance and Commercial freeze KPI contracts; Data/BI documents source lineage and establishes the discrepancy baseline.
  2. DAYS 31–60Data Engineering creates reconciled tables and tests with at least three conflicting legacy reports. Owners sign off on exceptions.
  3. DAYS 61–90Commercial runs the decision pack with channel/cohort economics; independent finance review validates contribution and meeting actions.

Stop rule: do not approve scaled media reallocation based on this dashboard while CAC attribution, customer cohorts or variable contribution remain unreconciled.

07 / EVIDENCE LEDGER

What the case establishes—and what it cannot.

ClaimClassification
Revenue, orders, CAC and repeat-rate endpointsComputed from synthetic exercise
A metric layer is preferable to immediate dashboard duplicationRecommendation / judgment
Better retention caused the revenue changeNot established
The proposed control targets were deliveredNot claimed / not tested

Decision: commission definition and lineage work first, then spend decisions against verified contribution. This is a worked analytical case, not an account of client results.

Underlying synthetic KPI/MIS report (PDF) ↗ · Original sample view ↗