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Market prices
Grading expected value
Worth grading
Expected profit: $1.94 (+6% ROI)
PSA 10 Chance
83.3%
$36.67 per PSA 10
PSA 9 Chance
16.7%
$18.33 per PSA 9
Grading cost
Based on 6 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 | 5 | 83.3% |
| PSA 9 | 1 | 16.7% |
| Total | 6 | 100% |








