Should you grade Yanmega #17?

Borderline

+$21.24

net at PSA 10, but the gem rate is 5.7% — profitable only if it gems

The ledger

Raw card$5.98
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$19.13
PSA 10 sale$141.34
Net at PSA 10+$21.24
Net if it grades PSA 9 instead$-61.90

5.7% of the 53 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.