Nadia's Q3 Revenue by Region — Schema
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Flat CSV in nadia-q3-region.csv. Two logical row types in one file, disambiguated by the row_type column.

Columns
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Column        Type     Description
------------  -------  --------------------------------------------------------------------------------------------------------------------
row_type      text     Either quarter (aggregate row) or region (per-region row).
region        text     TOTAL for the aggregate row; region code (APAC, EMEA, LATAM, NA) for regional rows.
revenue_m     decimal  Actual revenue in millions of USD.
plan_m        decimal  Plan revenue in millions of USD.
variance_pct  decimal  (revenue_m - plan_m) / plan_m  100, rounded to one decimal. 0.0 for the quarter total; per-region for regional rows.

Row inventory
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- 1 quarter row (region = TOTAL).
- 4 region rows (APAC, EMEA, LATAM, NA).

Total: 5 rows.

Deliberate design choices
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The dataset carries both actual and plan on every row so the reader can reproduce either the Copilot first-draft chart (which uses only revenue_m) or the hand-built chart (which needs both to compute per-region variance). The quarter row is included so any tool reading the CSV can confirm the regional rollup sums to the quarter total without cross-referencing a separate file.

The variance_pct column is pre-computed to fix the exact percentages Chapter 7's caption cites (NA -5.3%, APAC +4.3%, EMEA +5.1%, LATAM +4.0%). Rounding is done once at dataset build time so any downstream chart that displays these percentages matches the print figure exactly.

License
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Released for teaching use alongside The Defensible Decision. Use freely.