assets/courses/sales-plan/files/input/assumptions-en.md

# Ciclo Arco

Entirely fictional case: Ciclo Arco sells urban and trekking bicycles. actual-sales.csv contains monthly actuals for January and February 2026 in EUR; units, gross sales, discounts and cost of goods sold are available. Positive amounts, ungrouped dot decimals; FX is one. Prepare January and February 2027 from the same months in 2026. Demonstration assumption: units +10% for both products; unit prices unchanged, discounts and COGS proportional to sales. No FX conversion, overlapping assumptions or estimates for missing months. This is a scenario request to read back and confirm during the lesson, not evidence of future demand or prefilled professional confirmation.