Should You Grade Mewtwo #XY100 from XY Black Star Promos?
Free PSA grading EV calculator pre-loaded with live market data for Mewtwo #XY100. Current PSA 10 gem rate is 2.3% based on 307 graded copies. PSA 10 sales average $503.00 vs a raw market of $21.64. Expected value of grading: $30.10 (33% ROI). Verdict: Decent — proceed with caution.
XY Black Star Promos · #XY100 · Promo
Default-tier verdict
Decent — proceed with caution+$30 (+33% ROI)
Based on raw market $21.64, PSA 10 $503.00, gem rate 2.3% (307 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Mewtwo #XY100 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 | 7 | 2.3% |
| PSA 9 | 55 | 17.9% |
| PSA 8 | 102 | 33.2% |
| PSA 7 | 85 | 27.7% |
