Large packs and giveaways aren't always cheaper. Separating the amount paid from the amount received lets you compare complex offers fairly.
Two 500 g bags versus one 800 g bag
| Compare | Product A | Product B |
|---|---|---|
| Amount purchased | 500 g × 2 = 1,000 g | 800 g × 1 = 800 g |
| Total including shipping | KRW 12,000 | KRW 10,000 |
| Price per 100 g | KRW 1,200 | KRW 1,250 |
B costs less at checkout, while A is cheaper per weight. The better choice depends on how much you need and how long you can store it.
What discount percentages miss in 1+1 offers
Buy one identical item and get one free halves the unit cost. But consider unused portions if it's too much or expires soon. The price tool uses the full quantity received and doesn't assess waste.
Check coupon order and conditions
KRW 10,000 minus 20%, then a KRW 1,000 coupon, is KRW 7,000. Deducting the coupon first gives KRW 7,200. Nori applies the percentage first. If the seller's order differs, omit the coupon and enter the actual discounted product price instead.
Before buying more for free shipping
If extra items cost more than shipping, total spending increases. Consider whether you need them and can use the quantity. For one order with several products, avoid counting the same shipping fee for each product.