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Market prices
Grading expected value
Not worth grading
Expected loss: $0.46 (-1% ROI)
PSA 10 Chance
83.8%
$34.00 per PSA 10
PSA 9 Chance
15.8%
$17.00 per PSA 9
Grading cost
Based on 253 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 | 212 | 83.8% |
| PSA 9 | 40 | 15.8% |
| PSA 8 | 1 | 0.4% |
| Total | 253 | 100% |




