![Koffing [Blue Back] #109 Pokémon card from Japanese Topsun](https://storage.googleapis.com/images.pricecharting.com/ref945c2b2b5721a9e66e87db68b8229f89b50025aac0cf20a4c7d73ffe85e3aa9f/240.jpg)
Japanese
Koffing [Blue Back] 109/248
Topsun· Language: Japanese
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Koffing [Blue Back] #109 from Japanese Topsun currently trades at $11.76 raw, with PSA 10 copies reaching $619.69 — a 52.7x grade premium. The card has gained 7.2% over the past 30 days.
Current Prices (USD)
Ungraded
PSA 7
PSA 8
PSA 9
PSA 10
ACE 10
BGS 10 Black
CGC 10 Pristine
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Raw Price Trend
7d
-41.2%
30d
+7.2%
90d
—
180d
—
1y
+72.2%
2y
+131.5%
5y
—
Quick price facts
Koffing [Blue Back] 109/248 from Topsun has a current raw market value of $11.76.
- Current raw value
- $11.76
- PSA 9 value
- $60.98
- PSA 10 value
- $620
- Raw value 7d
- -41.2%
- Raw value 30d
- +7.2%
- PSA 10 premium vs raw
- 52.7× raw
Collector Intel
52.7x
Raw → PSA 10
High-risk grade
5.2x
Raw → PSA 9
Grade multiplier
+7.2%
30d Price Move
Rising
Volatile
Price Stability
41.2% swing this week
Calculated from price history, PSA population data, and market trends. Not financial advice.
Grading Calculator
Based on PSA Standard tier (~$25 USD). Assumes a perfect PSA 10 result — actual outcome depends on card condition.
⚠️ High-variance grade. PSA 10 is 53x the raw price. The expected value accounts for the realistic probability.
$12
Buy Raw
~$25
Grading Fee
PSA Standard
$620
PSA 10 Value
+$583
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$615.2x raw
PSA 10$62052.7x raw