First establish comparability
Match the same model, variant, pack size and condition before ranking offers. Record uncertain matches for review rather than silently treating similar product names as identical. Use the same market, currency and observation period, and agree how tax is treated.
A price shown on a listing page may have conditions. Membership, payment method, minimum basket value, location or shipping destination can affect the offer. If a condition cannot be confirmed, keep it visible in the comparison instead of assuming every buyer qualifies.
Calculate on agreed terms
The fictional offers below are drawn from the same dataset used in the Signal Playground. The comparison assumes matching products in USD, a qualifying promotion, and the listed delivery charge. Tax treatment is outside this teaching example.
Before the promotion, North Market is the lowest available offer at USD 93 delivered. After Field Store’s USD 12 promotion, its delivered total becomes USD 83. Everyday Co. has a lower headline price but is out of stock, so it is excluded from a ranking of available offers. The lowest headline price and the lowest available delivered price answer different questions.
| Retailer | Base | Discount | Delivery | Total | Stock |
|---|---|---|---|---|---|
| Field Store | 95 | 12 | 0 | 83 | Available |
| Everyday Co. | 79 | 0 | 5 | 84 | Out of stock |
| North Market | 89 | 0 | 4 | 93 | Available |
Explain changes and uncertainties
Keep base price, discount, delivery and availability as separate observations. A change in the total may reflect a promotion or shipping change rather than a base-price movement. Record the observation time and evidence needed to revisit that interpretation.
Use the comparison to investigate a market question, not to automate a pricing decision without review. Source feasibility, refresh frequency, matching confidence and treatment of conditional offers must be agreed for the engagement.
- Matched product and variant
- Market, currency and tax treatment
- Promotion eligibility and observation time
- Delivery destination and charges
- Availability and uncertain matches
Illustrative data and templates explain the method. They do not establish source coverage, a customer outcome, or an agreed delivery commitment.
Explore the relevant services
Competitor intelligence ↗ — Connect developments across competitor websites, announcements, campaigns, and selected public sources. Understand the change, its context, and what remains uncertain.
Price intelligence ↗ — Compare offers with the context that matters: product variants, promotions, availability, and delivery charges. Turn scattered prices into a useful view of your market.