The Black Friday Margin Trap

Read the Adore Beauty example on its actual reporting basis

Adore Beauty’s H1 FY26 results, released on 24 February 2026 for the half-year ended 28 December 2025, reported gross profit margin of 35.0%, down 120 basis points on the prior corresponding period. Management connected the margin pressure with strong Black Friday/Cyber promotional trading. This is historical evidence from the 2025 event, not a result from Black Friday 2026.

The same presentation reported underlying EBITDA growth of 14.5%. A lower gross margin percentage therefore does not establish that the company lost money on Black Friday or that its overall profit fell on every measure. The useful lesson is narrower: promotional sales can change the quality of revenue, even while other parts of the business improve. No Merchmix customer relationship with Adore Beauty is implied.

Write down what would sell without the offer

The starting point is the best supported estimate of sales at the normal price over the same period. It is a counterfactual, not a second observable result from the identical event. Comparable trading, availability, customer mix and earlier offers can help challenge it, but none removes the uncertainty.

In Core, retain that baseline beside the promotional version of the MFP/WSSI plan. Define the eligible products, selling dates, price and unit cost before adding a demand uplift. Discounting purchases that would have happened anyway gives away unit contribution; the additional demand must be large enough to cover that reduction and the costs specific to the event.

Compare a larger event with a stronger financial hurdle

An independent beauty retailer tests one skincare option over a single event window. The no-offer assumption is 150 units at $80, with $32 landed goods cost per unit. Revenue would be $12,000 and product gross profit $7,200. The comparison excludes tax, returns and other operating expenses; it assumes adequate usable supply and one consistent cost basis.

A 20% offer sets the price at $64 and assumes 240 sales. Revenue becomes $15,360, 28% above the no-offer case, while unit volume is 60% higher. Product gross profit is $7,680, but a separate $600 event-specific campaign cost leaves $7,080 after goods and that campaign cost. That is $120 below the baseline, despite the larger sales result. This defined contribution comparison is not net profit or Adore Beauty data.

Make the required volume visible before approval

At the $64 offer price and $32 goods cost, each sold unit contributes $32 before the campaign cost and other expenses. Matching the $7,200 baseline after the additional $600 requires 243.75 units, rounded up to 244 whole units. Those sales generate $15,616 revenue, $7,808 product gross profit and $7,208 after the campaign cost.

The 244-unit result is a financial hurdle, not a forecast that the offer can achieve it. Under the stated cost basis, the 240-unit event falls four units short of that hurdle. Core helps compare that volume requirement with the proposed stock and intake; approval still needs a credible demand case, sufficient selling time and the actual price-execution workflow.

Challenge the baseline as carefully as the uplift

If normal-price demand were only 120 units, its gross profit would be $5,760 and the offer would need 199 units to exceed that result after the same campaign cost. If normal demand were 180, baseline gross profit would be $8,640 and the hurdle would rise to 289 units. The same 240-unit offer can look different when the defensible alternative changes.

Do not select the lowest baseline merely to approve a preferred promotion. Atlas can support a scoped view of units, realised price, gross profit and stock availability. The retailer still needs comparable periods and a reasoned estimate of normal demand. Observed event revenue cannot, on its own, identify which purchases were incremental or brought forward from later full-price trading.

Connect the offer to the stock it leaves behind

A financially credible offer can still be poorly targeted if it discounts a strong line while a different option carries the excess. Review eligibility by product role and remaining selling opportunity. Keep the original ticket, actual net price and any overlapping offer on a consistent basis so the same reduction is counted once.

Core connects markdown assumptions with the forward sales, stock and intake plan. Atlas provides the reporting context for the accepted comparison; event-cost analysis requires the relevant cost data to be supplied and configured. Neither an attractive percentage nor this illustration claims that Atlas automatically measures causal promotional uplift or that planning approval has changed a live selling price.

Approve a commercial case, then review the actual result

The decision for this example is whether evidence supports at least 244 sales at the proposed price and cost basis, not whether 240 is a larger number than 150. If the hurdle is unrealistic, review the eligible range, discount depth, event cost or decision to participate. A narrower, justified offer may be more useful than a blanket reduction intended to repair a headline target.

After the event, reconcile recorded sales, returns, realised price, goods cost and the costs actually incurred. Compare them with the retained Core versions and the defined Atlas reporting scope. Keep any later full-price demand and remaining stock in view. A record sales day deserves a financial explanation that survives the following weeks, rather than a claim of success based on volume alone.

Common questions