Should You Grade Porygon-Z #BW84 from BW Black Star Promos?
Free PSA grading EV calculator pre-loaded with live market data for Porygon-Z #BW84. Current PSA 10 gem rate is 4.0% based on 101 graded copies. PSA 10 sales average $785.51 vs a raw market of $64.90. Expected value of grading: $68.24 (51% ROI). Verdict: Grade It.
BW Black Star Promos · #BW84 · Promo
Default-tier verdict
Grade It+$68 (+51% ROI)
Based on raw market $64.90, PSA 10 $785.51, gem rate 4.0% (101 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Porygon-Z #BW84 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 | 4 | 4.0% |
| PSA 9 | 38 | 37.6% |
| PSA 8 | 31 | 30.7% |
| PSA 7 | 20 | 19.8% |
