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Market prices
Grading expected value
Not worth grading
Expected loss: $2.70 (-9% ROI)
PSA 10 Chance
90.5%
$31.20 per PSA 10
PSA 9 Chance
4.8%
$15.60 per PSA 9
Grading cost
Based on 42 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 | 38 | 90.5% |
| PSA 9 | 2 | 4.8% |
| PSA 7 | 2 | 4.8% |
| Total | 42 | 100% |











