Should You Grade Mewtwo #9 from Pokémon Rumble?
Free PSA grading EV calculator pre-loaded with live market data for Mewtwo #9. Current PSA 10 gem rate is 4.3% based on 607 graded copies. PSA 10 sales average $6621.91 vs a raw market of $280.00. Expected value of grading: $336.39 (38% ROI). Verdict: Decent — proceed with caution.
Pokémon Rumble · #9
Default-tier verdict
Decent — proceed with caution+$336 (+38% ROI)
Based on raw market $280.00, PSA 10 $6621.91, gem rate 4.3% (607 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Mewtwo #9 to PSA for grading. EV factors in real PSA population data (gem rates), live market prices for raw and graded copies, and PSA's tiered fee structure including upcharges when a card's graded value exceeds the tier's Max Insured Value. Adjust the inputs to match your card's exact condition for a personalized recommendation.
PSA population summary
| Grade | Population | Rate |
|---|---|---|
| PSA 10 | 26 | 4.3% |
| PSA 9 | 125 | 20.6% |
| PSA 8 | 140 | 23.1% |
| PSA 7 | 97 | 16.0% |
