Should you grade Brock #15?

Borderline

+$376.83

net at PSA 10, but the gem rate is 1.8% — profitable only if it gems

The ledger

Raw card$34.77
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$77.84
PSA 10 sale$584.43
Net at PSA 10+$376.83
Net if it grades PSA 9 instead$-30.13

1.8% of the 1,429 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.