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Grading expected value
Not worth grading
Expected loss: $0.90 (-3% ROI)
PSA 10 Chance
87.1%
$33.33 per PSA 10
PSA 9 Chance
8.7%
$16.67 per PSA 9
Grading cost
Based on 5,710 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 | 4,971 | 87.1% |
| PSA 9 | 499 | 8.7% |
| PSA 8 | 196 | 3.4% |
| PSA 7 | 25 | 0.4% |
| PSA 6 | 11 | 0.2% |
| PSA 5 | 5 | 0.1% |
| PSA 4 | 3 | 0.1% |
| Total | 5,710 | 100% |











