What this is
Weights agree within 3–9%, so the two customs records describe the same goods; values differ by a steady 35–46% (2024: 1.37), too large for freight and insurance alone (C: plausible causes are Comtrade's JPY→USD conversion, valuation additions on Korean entry, or origin vs consignment rules; not tested).
Where it comes from
Our calculation from other figures in the trainer’s notes.
Show the working
- 19,031,887/13,544,450 = 1.41
- 927,614/877,769 = 1.06 (2025)
- same for 2021–24