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Market prices
Grading expected value
Worth grading
Expected profit: $9.71 (+31% ROI)
PSA 10 Chance
57.1%
$52.67 per PSA 10
PSA 9 Chance
42.9%
$26.33 per PSA 9
Grading cost
Based on 28 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 | 16 | 57.1% |
| PSA 9 | 12 | 42.9% |
| Total | 28 | 100% |






