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Market prices
Grading expected value
Not worth grading
Expected loss: $4.98 (-16% ROI)
PSA 10 Chance
90.6%
$28.00 per PSA 10
PSA 9 Chance
9.4%
$14.00 per PSA 9
Grading cost
Based on 32 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 | 29 | 90.6% |
| PSA 9 | 3 | 9.4% |
| Total | 32 | 100% |





