Should You Grade Koffing (1st Edition)?
Base Set · #51
No
Expected profit: $-12.18 (-26% ROI)
Expected Value
Raw price$24.77
Grading cost~$22.00
Blended EV$12.59
Expected profit$-12.18
ROI-26%
Break-even sell price$27.65
Profit by Grade
PSA 6
$12.47
$-34.30 (-73%)
PSA 7
$38.79
$-7.98 (-17%)
PSA 8
$43.18
$-3.59 (-8%)
PSA 9
$73.92
+$27.15 (58%)
PSA 10
$455.93
+$409.16 (875%)
Top Grading Opportunities in Base Set
Similar Price, Better ROI
