Grow Fragrance — MER Analysis (Net Revenue Basis)

Ad spend as % of net revenue (primary) with MER ratio (secondary). Net revenue: Amazon × 0.563 (ad spend excluded from deductions), Shopify × 0.92 — P&L-derived. Total spend = Meta + Google + Amazon Ads. Includes Klaviyo attribution scenarios. Jan 2024 – Dec 2025, 105 weeks.

Net Revenue Basis (v7): All figures use P&L-compatible net revenue. Amazon net ≈ 56.3% of gross (after referral, FBA, returns, sales tax — ad spend carved out as separate line). Shopify net ≈ 92% of gross (after merchant fees, returns, sales tax). Klaviyo attribution also net (× 0.92).
Klaviyo Attribution Scenarios: Platforms overclaim credit by 40–70% in aggregate. Conservative = 100% of Klaviyo is owned; Moderate = 50% owned (recommended); Aggressive = 35% owned. Use Moderate as working assumption until holdout test confirms.
Amazon Ad Spend — Carved Out: The P&L embeds Amazon ad costs (~$105K/yr) inside "Amazon Fees - Other" as a deduction from gross revenue. To enable correlation analysis, we removed ad spend from the net factor (raising it from 0.46 → 0.563) and added it as a separate spend line. Total spend = Meta + Google + Amazon Ads. ⚠ 2024 Amazon ad values are estimated* from the 2025 monthly average ($8,778/mo) — actual 2024 data unavailable due to Amazon reporting limitations.
⚠ Bad Agency Period Excluded (May 6 – Jul 1, 2024): A temporary hire ran unsanctioned spend strategies during these 9 weeks. Meta spend peaked at 446% above normal, MER hit 55%. These weeks are shown on charts (shaded red) but excluded from all trend calculations, seasonal baselines, and averages. Pre/post-agency data is used to interpolate normal patterns for this period.
Data Notes: Google spend anomalies (Mar 2025 testing noise, Sep 2024 sloppy management) excluded from Google trends. Apr 22 '24 & Aug 11 '25 Shopify spikes = confirmed launches + price increases. BFCM '24 Klaviyo 53% = real loyal-customer email response. Dec 29 '25 = partial holiday week, excluded. Oct 6 '25 Klaviyo at 2.6% = under investigation.

Weekly Ad Spend as % of Net Revenue — Three Attribution Scenarios

Higher = less efficient. Toggle scenarios below. Solid line = selected scenario. Dashed = blended (all net revenue, no Klaviyo adjustment).
Conservative (100% owned)
Moderate (50% owned) ★
Aggressive (35% owned)

Weekly MER Ratio (Net Revenue ÷ Spend)

Same data, ratio view. Blue = blended, red = paid (moderate scenario).

Klaviyo % of Shopify Revenue

Email attribution share over time (gross basis — ratio unchanged). Median ~30%.

Weekly Net Revenue Breakdown: Paid Shopify / Klaviyo / Amazon

Stacked net revenue with total spend inverted below axis. Moderate scenario (50% Klaviyo = owned).

Spend vs. Spend-as-%-of-Paid-Net-Revenue

Does spending more compress efficiency? Blue = 2024, green = 2025. Moderate scenario.

Spend vs. Paid Net Revenue

Revenue elasticity to spend. Moderate scenario.

Monthly Summary — Moderate Scenario (50% Klaviyo = Owned) — Net Revenue

Spend % = primary metric. MER ratio shown for reference. All revenue figures net of fees/returns/tax.
MonthNet RevKlaviyo NetOwned (50%)Paid Net Rev MetaGoogleAmazon AdsTotal Spend Spend % (all)Spend % (paid)MER (paid)Posture

Annual Summary — All Three Scenarios — Net Revenue

Side-by-side comparison of attribution assumptions on a net revenue basis.
YearNet RevTotal Spend Conservative (100%)Moderate (50%)Aggressive (35%)
Spend %MERSpend %MERSpend %MER

Gross vs. Net Revenue Comparison

Impact of net revenue conversion on efficiency metrics (moderate scenario).
YearGross RevNet RevNet/Gross % Gross Spend %Net Spend %Δ Spend %

Refinement Backlog

Ordered by impact.
ItemStatusImpact
Amazon Advertising spendCarved out of net factor (0.46 → 0.563); now separate spend lineEnables correlation analysis. 2024 estimated* from 2025 avg.
P&L / Contribution margin → MER floorFile uploaded, ready to parseSets break-even spend % ceiling
Klaviyo holdout test (90-day)Recommended — free via KlaviyoDefinitively answers email incrementality
Klaviyo campaign attributionIntegrated (3 scenarios)Done
Net revenue conversionApplied (Amazon ×0.563, Shopify ×0.92)Done — P&L compatible (ad spend carved out)
Klaviyo flow revenue (non-campaign)Not yet exportedFlows likely add more owned revenue
SMS channel attributionNot in current exportMay be small
New vs. returning customer splitNeeds Shopify customer exportTrue acquisition spend %
Agency transition timelineIdentified: May 6 – Jul 1, 2024. Bad hire, crazy spend. 9 weeks excluded.Resolved — data carved out, trends recalculated
Stockout dates by SKUPendingExplains spend % spikes when constrained
Fragrance-age segmented analysisPossible with existing dataInvestment vs harvest by SKU age
COGS by SKU/channelPendingMargin-adjusted analysis
March 2025 Google spend ($1.3K)Confirmed: testing noise. Excluded from Google trend analysis.Resolved

v7 — Net Revenue Basis. Spend = Meta + Google + Amazon Ads. Amazon ad spend carved out of net factor (0.46 → 0.563). *2024 Amazon ad spend estimated from 2025 avg ($8,778/mo). ⚠ Excluded from trends: Bad agency (May 6 – Jul 1, 2024, 9 wks), Dec 29 2025 (partial week). † Google noise excluded: Mar 2025 (testing), Sep–Oct 2024 (sloppy mgmt). Confirmed launches: Apr 22 '24, Aug 11 '25 (launch + price increase). BFCM '24 Klaviyo 53% = real loyal-customer response. Oct '25 Klaviyo 2.6% under investigation. Net factors: Amazon ×0.563, Shopify ×0.92. Klaviyo = campaign email only. Generated March 17, 2026.