Match the package size
For a strong price-match request, match the same package size, weight, volume, and count. If one listing is 500g and the other is 750g, they are different offers even when the larger package has a lower unit price.
| Cart item | Competitor item | Comparison | Result |
|---|---|---|---|
| Milk 4L | Same milk 4L | Same volume | ✓ Comparable |
| Cheese 400g | Same cheese 450g | Different weight | ✕ Mismatch |
| Yogurt 12 × 100g | Same yogurt 8 × 100g | Different count | ✕ Mismatch |
| Cereal 500g | Same cereal 500g | Same size | ✓ Comparable |
| Paper towel 6 rolls | Same brand 6 rolls | Check sheet count and format | ✕ Needs review |
Why unit pricing does not solve the mismatch
Unit pricing normalizes the cost to a common measure such as $/100g or $/L. That helps you decide which product is the better buy. A price-match policy, however, asks whether the competitor is selling the same item for less.
The two tools answer different questions:
- Unit price: Which package gives me more product for each dollar?
- Exact comparison: Is this identical package cheaper at another store?
Counts and multipacks matter too
Size is not limited to grams and litres. A six-pack and an eight-pack differ. So can paper towel with different sheet counts, concentrated detergent with different load counts, or coffee pods sold in different quantities.
Two packages can show the same number of rolls or containers while holding different amounts. Check sheet count, individual container size, and concentrated-versus-standard formats.
What about produce and variable-weight meat?
Produce sold in a standard package can qualify when the package and attributes match. Variable-weight products need more care because the final price depends on weight, cut, grade, and packaging. A deli or service-counter product is not interchangeable with a packaged product.
See Can You Price Match Produce, Meat, and Bakery Items? for fresh-item examples involving selling units, cuts, varieties, and store preparation. See the Canada-wide guide for the bigger picture.
Remove uncertain matches
One questionable size comparison is rarely worth weakening an otherwise clear request. Keep the exact matches and use unit pricing separately to decide whether switching products would save more.