Black Friday Deal Worth Calculator

Black Friday — originating in the United States and now celebrated globally — is the Friday after Thanksgiving and traditionally marks the beginning of the holiday shopping season. Retailers offer steep discounts, but not all deals are created equal. Retailers sometimes inflate original prices before the sale, making a 50% discount look impressive when the item was only 10% cheaper to begin with.

This calculator helps you cut through the marketing hype and assess whether a deal is actually worth buying.

The True Savings Formula

True savings = Original price − Sale price Percentage saved = (Original price − Sale price) ÷ Original price × 100

However, a big discount doesn’t automatically mean it’s worth buying. Several other factors matter:

Factors to Consider

1. Would you buy this at full price? If you wouldn’t buy it at $150, you’re not saving $75 — you’re spending $75 you didn’t plan to spend.

2. Price history: Has this item been cheaper before? Tools like CamelCamelCamel (for Amazon) and Google Shopping history can reveal if the “original price” is inflated.

3. Urgency vs genuine need: Limited-time pressure is a sales tactic. A deal is only a deal if you genuinely need or want the item.

4. Quality and reviews: A discounted poor-quality item is still a poor purchase.

5. Return policy: Does the sale change the return window?

The Deal Score System Used Here

This calculator produces a Deal Score based on:

• Discount percentage (0–40 points)
• Whether you have a genuine need (0–30 points)
• Whether you’ve checked price history (0–20 points)
• Credit card/payment method used (0–10 points)

Score Guide