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docs(adr): ADR-0144 D7 names the projection-formula mismatch in its implementing card
Parameter 3 makes the home amount the record amount divided by rate; the implementing card's body writes the product while its own check is the division. D7 now says so. Claude-Session: https://claude.ai/code/session_01Utp6CbTZrFqRYNgjSaSbN5 Co-authored-by: Claude <noreply@anthropic.com>
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‎docs/adr/0144-multi-currency-record-currency-dated-rates-write-time-home-projection.md‎

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- **Parameter 3 as arithmetic.** An amount `A` in currency `X`, whose rate row says `r`, is `A ÷ r` home units. The
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home amount is the record amount **divided by** `rate`. Workload row M2-2 writes the projection as
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"amount × rate", which is the inverse convention. #27192 follows parameter 3.
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"amount × rate", which is the inverse convention, and #27192's card body repeats the product. That card's own
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two-minute check is the division: USD 10,000 at 0.1389 gives ¥71,994.24. #27192 follows parameter 3.
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- **Parameter 1 governs the recompute and backfill** (M2-3, #27193). It does not govern the write path, where D5's
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refusal holds.
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- The wording of parameter 4 leaves its unit open ([Open item](#open-items) 5).

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