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Market prices
Grading expected value
Not worth grading
Expected loss: $5.30 (-17% ROI)
PSA 10 Chance
88.9%
$28.00 per PSA 10
PSA 9 Chance
9.9%
$14.00 per PSA 9
Grading cost
Based on 497 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 | 442 | 88.9% |
| PSA 9 | 49 | 9.9% |
| PSA 8 | 6 | 1.2% |
| Total | 497 | 100% |







