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Market prices
Grading expected value
Not worth grading
Expected loss: $6.62 (-21% ROI)
PSA 10 Chance
88.4%
$26.67 per PSA 10
PSA 9 Chance
10.6%
$13.33 per PSA 9
Grading cost
Based on 395 graded samples. PSA 9 ≈ 50% of PSA 10, PSA 8 ≈ 25%. Actual results may vary.
PSA population
View on PSA| Grade | Population | % of Total |
|---|---|---|
| PSA 10 | 349 | 88.4% |
| PSA 9 | 42 | 10.6% |
| PSA 8 | 4 | 1.0% |
| Total | 395 | 100% |











