![Professor Elm's Training Method [Reverse Holo] #89 from Pokemon Unseen Forces](https://images.pokemontcg.io/ex10/89.png)
Professor Elm's Training Method [Reverse Holo] #89 PSA 10: price & population
PSA 10
$205.21
Raw
$11.49
PSA 10 pop
7
Gem rate
14.6%
A PSA 10 Professor Elm's Training Method [Reverse Holo] #89 from Unseen Forces sells for $205.21 — a 1,686% premium over the $11.49 raw price. PSA has graded this card 48 times; 7 came back a 10 (14.6% gem rate), and 19 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $106.05. The jump from 9 to 10 is worth $99.16 — 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.
