Should You Grade Marnie?
SWSH Black Star Promos · #SWSH121
Yes
Expected profit: $31.91 (63% ROI)
Expected Value
Raw price$28.32
Grading cost~$22.00
Blended EV$60.23
Expected profit$31.91
ROI63%
Break-even sell price$-1.65
Profit by Grade
PSA 7
$18.69
$-31.63 (-63%)
PSA 8
$20.51
$-29.81 (-59%)
PSA 9
$29.23
$-21.09 (-42%)
PSA 10
$200.89
+$150.57 (299%)
Undervalued
This card is undervalued by 113% — grading EV is $60.23 vs $28.32 raw.
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