Full calculation
One chain, visible end to end.
- 01Currency on sale date
USD at sale = original currency × historical FX. Example: €6,145 × 1.0857 = $6,671.63.
- 02Inflation to June 2026
2026 USD = USD at sale × 332.568 ÷ CPI for the sale month.
- 03Metal floor
0.2489 oz × $4,008 = $998.

