![Koga's Koffing [1st Edition] #79 Pokémon card from Gym Challenge](https://storage.googleapis.com/images.pricecharting.com/84233ac60a43b86fffd6ef77baf9597f8f9d7e0953a567174c3a3ecdf4023a1b/240.jpg)
Koga's Koffing [1st Edition] 79/132
Gym Challenge
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Koga's Koffing [1st Edition] #79 from Gym Challenge currently trades at $3.00 raw, with PSA 10 copies reaching $152.50 — a 50.8x grade premium. The card has lost 5.7% 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
-4.2%
30d
-5.7%
90d
—
180d
-6.2%
1y
+0.7%
2y
-23.9%
5y
-11.0%
Quick price facts
Koga's Koffing [1st Edition] 79/132 from Gym Challenge has a current raw market value of $3.00.
- Current raw value
- $3.00
- PSA 9 value
- $27.50
- PSA 10 value
- $153
- Raw value 7d
- -4.2%
- Raw value 30d
- -5.7%
- PSA 10 premium vs raw
- 50.8× raw
Collector Intel
50.8x
Raw → PSA 10
High-risk grade
9.2x
Raw → PSA 9
Grade multiplier
-5.7%
30d Price Move
Falling
Steady
Price Stability
4.2% 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 51x the raw price. The expected value accounts for the realistic probability.
$3
Buy Raw
~$25
Grading Fee
PSA Standard
$153
PSA 10 Value
+$125
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$289.2x raw
PSA 10$15350.8x raw