Should you grade Nidoking #45?

Borderline

+$148.40

net at PSA 10, but the gem rate is 0.8% — profitable only if it gems

The ledger

Raw card$1.85
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$37.92
PSA 10 sale$283.16
Net at PSA 10+$148.40
Net if it grades PSA 9 instead$-72.95

0.8% of the 4,331 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.