Should You Grade Psyduck #SM199 from SM Black Star Promos?
Free PSA grading EV calculator pre-loaded with live market data for Psyduck #SM199. Current PSA 10 gem rate is 18.6% based on 145 graded copies. PSA 10 sales average $1149.94 vs a raw market of $10.69. Expected value of grading: $144.32 (143% ROI). Verdict: Grade It.
SM Black Star Promos · #SM199 · Promo
Default-tier verdict
Grade It+$144 (+143% ROI)
Based on raw market $10.69, PSA 10 $1149.94, gem rate 18.6% (145 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Psyduck #SM199 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 | 27 | 18.6% |
| PSA 9 | 73 | 50.3% |
| PSA 8 | 37 | 25.5% |
| PSA 7 | 4 | 2.8% |