![Koffing [Reverse Holo] #28 from Pokemon Hidden Fates](https://images.pokemontcg.io/sm115/28.png)
Koffing [Reverse Holo] #28 PSA 10: price & population
PSA 10
$31.00
Raw
$1.01
PSA 10 pop
11
Gem rate
26.2%
A PSA 10 Koffing [Reverse Holo] #28 from Hidden Fates sells for $31.00 — a 2,969% premium over the $1.01 raw price. PSA has graded this card 42 times; 11 came back a 10 (26.2% gem rate), and 22 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $26.24. The jump from 9 to 10 is worth $4.76 — that spread, times your real odds of the 10, is what decides whether grading pays.
Prices from real completed sales, updated daily. Population data from PSA's public population report.
