Should you grade Slowking [Reverse Holo] #28?

Borderline

+$125.03

net at PSA 10, but the gem rate is 28.8% — profitable only if it gems

The ledger

Raw card$9.99
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$35.59
PSA 10 sale$265.60
Net at PSA 10+$125.03
Net if it grades PSA 9 instead$-57.67

28.8% of the 52 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.