How is this value calculated?
Recency-weighted trimmed median of 2 NM sales (RAW; outliers trimmed against the median, newer sales weigh more, dynamic half-life).
No PSA numbers for this print yet — in any language.
#121 · 
#102 · 
#78 · 
#11
#BW35 · 
#13 · 
#10 · 
#203 · 
#106 · 
#11 · Frequently asked questions
Is it worth grading Team Rocket's Meowth · League Promo League Promos 18?
A PSA 10 currently sells for about £247.44, raw the card sits at £23.50 — 10.5× as much. Mathematically, submitting returns £247.44 on average, before fees and shipping. Rule of thumb: submit when the value at a realistic grade is at least double the raw value — which is the case here. Centering decides it: an off-centre card will not get a 10.
How does lastsold determine the market value?
lastsold uses only real sales — eBay plus auction houses like Goldin & Fanatics — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.