Should You Grade Mewtwo V-UNION #SWSH159 from SWSH Black Star Promos?
Free PSA grading EV calculator pre-loaded with live market data for Mewtwo V-UNION #SWSH159. Current PSA 10 gem rate is 65.8% based on 404 graded copies. PSA 10 sales average $83.99 vs a raw market of $9.48. Expected value of grading: $-15.12 (-19% ROI). Verdict: Sell raw.
SWSH Black Star Promos · #SWSH159 · Promo
Default-tier verdict
Sell raw$-15 (-19% ROI)
Based on raw market $9.48, PSA 10 $83.99, gem rate 65.8% (404 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Mewtwo V-UNION #SWSH159 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 | 266 | 65.8% |
| PSA 9 | 76 | 18.8% |
| PSA 8 | 30 | 7.4% |
| PSA 7 | 11 | 2.7% |
