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Market prices
Grading expected value
Worth grading
Expected profit: $16.90 (+53% ROI)
PSA 10 Chance
94.5%
$50.00 per PSA 10
PSA 9 Chance
5.0%
$25.00 per PSA 9
Grading cost
Based on 200 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 | 189 | 94.5% |
| PSA 9 | 10 | 5.0% |
| PSA 8 | 1 | 0.5% |
| Total | 200 | 100% |







