Should You Grade Rocket's Mewtwo ex #99 from Team Rocket Returns?
Free PSA grading EV calculator pre-loaded with live market data for Rocket's Mewtwo ex #99. Current PSA 10 gem rate is 6.4% based on 1,318 graded copies. PSA 10 sales average $23140.00 vs a raw market of $625.00. Expected value of grading: $3073.15 (244% ROI). Verdict: Grade It.
Team Rocket Returns · #99 · Rare Holo EX
Default-tier verdict
Grade It+$3073 (+244% ROI)
Based on raw market $625.00, PSA 10 $23140.00, gem rate 6.4% (1,318 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Rocket's Mewtwo ex #99 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 | 84 | 6.4% |
| PSA 9 | 308 | 23.4% |
| PSA 8 | 258 | 19.6% |
| PSA 7 | 215 | 16.3% |
