What this is
How far the top Nanjamo (Iono) card from the Japanese set Clay Burst has fallen in price at one shop: about 90% from launch in April 2023 to November 2026.
How it’s built
- Card Rush, a card shop: buy-back price fell from ¥220,000 at launch to ¥20,000 (down 90.9%); selling price from ¥298,000 to ¥34,800 (down 88.3%).
- Also down 37.5% from August to November 2026, and 42–50% over a year at a second price site, Toreca Map.
What we assumed
- Shop prices track the market.They are one vendor's posted prices, not recorded sales; each change is measured within one vendor's own series.
- The 'launch' price is from launch day, 14 April 2023.The source labels it launch-day but shows no exact date.
Sanity check
The second site's page contradicts itself (its headline price is about ¥58,000), so its figures are indicative only. A steep fall after a launch spike is common for chase cards.
Where it comes from
Our calculation from other figures in the trainer’s notes.
Show the working
- Card Rush buyback launch to 1 November 2026: -90.9%
- Card Rush sale launch to 1 November 2026: -88.3%
- Card Rush buyback 5 August 2026 to 1 November 2026: -37.5%
- Toreca Map sell 14 September 2025 to 9 October 2026: -42.2%
- Toreca Map buy 14 September 2025 to 9 October 2026: -50.4%
- 1-20,000/220,000=90.9%
- 1-34,800/298,000=88.3%
- 1-20,000/32,000=37.5%
- 1-39,800/68,900=42.2%
- 1-28,500/57,500=50.4%
Related figures
Built from this one