Should you grade Alolan Muk GX #138?

Borderline

+$137.48

net at PSA 10, but the gem rate is 19.0% — profitable only if it gems

The ledger

Raw card$5.72
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$36.84
PSA 10 sale$275.03
Net at PSA 10+$137.48
Net if it grades PSA 9 instead$-85.06

19.0% of the 211 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.