Should you grade Grumpig #6?

Borderline

+$112.56

net at PSA 10, but the gem rate is 17.6% — profitable only if it gems

The ledger

Raw card$14.81
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$34.42
PSA 10 sale$256.78
Net at PSA 10+$112.56
Net if it grades PSA 9 instead$-80.32

17.6% of the 204 copies PSA has graded came back a 10. Pop gem rates are a ceiling — centering and surface on your copy decide.

Prices from real completed sales, updated daily. Population data from PSA's public population report.