Should you grade Ditto #27?

Borderline

+$231.93

net at PSA 10, but the gem rate is 9.1% — profitable only if it gems

The ledger

Raw card$20.00
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$53.45
PSA 10 sale$400.37
Net at PSA 10+$231.93
Net if it grades PSA 9 instead$-72.02

9.1% of the 11 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.