A -70% might be worth less than an honest -20%. Learn how to tell a true deal from inflated pricing with Glitchoo's method.
Have you ever seen a -70% badge on Amazon and thought 'must-buy deal'? The reality is sneakier: the discount percentage is calculated against a reference price that might be inflated. A -70% on $300 inflated is worth less than a -20% on an already low price. High discount doesn't mean real savings unless you compare it with the lowest price in recent months. That's why on Glitchoo we never show a -% without backing it up with price history.
Why a -70% Can Be a Fake Deal
The mechanism is simple: Amazon or a third-party seller sets a list price (often higher than normal), then applies the discount to that figure. If the average market price was already lower, the discount is illusory.
The Typical Case
Let's say a pair of headphones: strikethrough price $150, -50% discount → final price $75. Without history, it looks like a deal. But if the 90-day history shows the average price was $70, the real discount is nearly zero. The -50% was inflated by the high starting price.
High discount doesn't mean real savings if the reference price is artificial. That's why on Glitchoo we compare every offer against the lowest price in the last 90 days and assign a Trust Score (reliability rating).
How to Spot Inflated Pricing
Here are the red flags to avoid:
- Overly round percentages (-50%, -70%, -80%): often a sign of a forced list price.
- No visible price history: if you can't see past trends, you're at the seller's mercy.
- Discount only via coupon: Amazon shows the -X% by adding a coupon? The coupon is extra value, but the discount should be calculated on the base price alone.
- Final price still high: a -70% off $500 gives you $150: not a deal if the same product sells for $120 elsewhere.
On Glitchoo, between February and July 2026, we caught over 1,500 price errors across more than 2 million price checks on 6 Amazon marketplaces (full study here). The discount on a real price error is typically far deeper than on a normal promotion. If you see a -70%, it might be a genuine glitch, but without context, it's just a number.
Glitchoo's Method: Price History and Trust Score
To unmask fake discounts, we use three tools:
- 90-day price history: we verify if the discount is real by comparing the current price to the historical low. If a product costs $50 today and history shows it at $48, the discount is zero.
- -% badge only on real discount: the -X% badge on Glitchoo appears only when the Amazon discount is genuine, never by adding coupons or inflating the strikethrough price.
- Trust Score: a score from 0 to 100 indicating offer reliability based on price stability, history, and seller reputation.
Comparison Table: Inflated Discount vs Real Discount
| Feature | Inflated Discount | Real Discount (Glitchoo) |
|---|---|---|
| Starting price | High strikethrough, off-market | Aligned with or below historical low |
| Percentage | -50% / -70% / -80% | Variable, even -20% if honest |
| Coupon | Added to discount | Kept separate |
| History check | Absent | Over 90 days |
| Trust Score | Low | High |
This difference is crucial: a -20% with 90-day history is more real than a -70% on an inflated price.
Examples From Glitchoo's Monitoring
In our daily monitoring of the U.S. marketplace, two typical cases come up all the time:
- Extreme but genuine discount: a product with a price cut that sounds insane, but history confirms the strikethrough price was real: a true deal.
- High discount, verified: headphones, gadgets, and accessories with steep percentages, confirmed by history. The Trust Score is high because the original price wasn't inflated.
Check the featured deals section below for details – you'll find both price errors and true discounts, all with Trust Scores.
How to Use Glitchoo to Avoid Being Fooled
Here's the workflow for every offer:
- Check the absolute discount: how many dollars you save compared to the historical low.
- Ignore the percentage if it's very high without supporting history: it might be inflated.
- Verify the Trust Score: above 80 is reliable, below 50 proceed with caution.
- If the offer has a price error (glitch), remember Amazon can cancel the order if the price is clearly wrong. Don't try to game the system: if the price is anomalous, Amazon has the right to cancel.
For more on how it works, read our guide on how Glitchoo works – it explains the method step by step.
Frequently Asked Questions
How do I know if a discount is real?
Compare the final price to the lowest price in the last 90 days. On Glitchoo you always see the history, the real strikethrough price (not inflated), and the Trust Score. If the percentage is high but the final price aligns with history, it's real.
Why does Amazon show high discounts that aren't real?
The strikethrough price is set by the seller or Amazon. It could be the manufacturer's suggested retail price, often higher than the regular selling price. Amazon isn't required to verify actual value. Glitchoo does it for you.
Can Amazon cancel a price error order?
Yes, per Amazon's terms, if the price is clearly wrong (e.g., $1 instead of $100), Amazon can cancel the order. We advise against buying hoping to 'beat the system': only buy if the price seems fair to you.
What is Glitchoo's Trust Score?
It's a score from 0 to 100 that combines: price stability over the last 90 days, history of similar offers, seller reputation, and no inflation in the strikethrough price. The higher it is, the more reliable the offer.
How do I find real deals today?
Visit the verified deals page where every offer has history, Trust Score, and a -% badge only on real discounts. We update in real time.
Conclusion
Don't be dazzled by sky-high percentages. A -70% might hide an inflated price, while an honest -20% is real savings. Glitchoo's method – 90-day history, Trust Score, and -% badge only on real discounts – gives you the tools to tell the difference.
Don't wait: real deals don't last long. In our price error study, the median lifespan of a price error is 48 hours, and 16% vanish within 6 hours. Discover now the verified deals and secure your deal with confidence. Prices change constantly: always check the Amazon product page before buying.
Glitchoo is an Amazon affiliate: if you buy through our links we earn a small commission at no extra cost to you.