Should You Grade Poliwhirl?
Expedition Base Set · #89
No
Expected profit: $-13.92 (-34% ROI)
Expected Value
Raw price$18.40
Grading cost~$22.00
Blended EV$4.48
Expected profit$-13.92
ROI-34%
Break-even sell price$-8.46
Profit by Grade
PSA 7
$14.00
$-26.40 (-65%)
PSA 9
$23.34
$-17.06 (-42%)
PSA 10
$81.19
+$40.79 (101%)
Similar Price, Better ROI