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Market prices
Grading expected value
Worth grading
Expected profit: $4.22 (+13% ROI)
PSA 10 Chance
89.2%
$37.93 per PSA 10
PSA 9 Chance
10.8%
$18.97 per PSA 9
Grading cost
Based on 37 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 | 33 | 89.2% |
| PSA 9 | 4 | 10.8% |
| Total | 37 | 100% |











