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Grading expected value
Not worth grading
Expected loss: $0.60 (-2% ROI)
PSA 10 Chance
86.4%
$33.33 per PSA 10
PSA 9 Chance
13.6%
$16.67 per PSA 9
Grading cost
Based on 147 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 | 127 | 86.4% |
| PSA 9 | 20 | 13.6% |
| Total | 147 | 100% |
