Should you grade Porygon-Z #7?

Borderline

+$245.11

net at PSA 10, but the gem rate is 10.6% — profitable only if it gems

The ledger

Raw card$6.49
Regular fee−$79.99
Shipping, both ways−$15.00
Selling fees−$53.40
PSA 10 sale$399.99
Net at PSA 10+$245.11
Net if it grades PSA 9 instead$-67.19

10.6% of the 161 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.