Shelly / Guide
Shelly guide

Reports: Excel, PDF and presentation

Ask in plain words ("make a budget for the next 3 months", "stock report for dairy in Excel") or open one from the Reports section.

At a glance

How it works

  1. Python computes every number (pandas, backtested forecasts); nothing is written by an AI.
  2. The report page renders the same spec three ways: Print (white paper), Dark (Shelly look) and Present (one section per screen, arrow keys).
  3. ⬇ PDF opens the print dialog: choose Save as PDF. On a computer, `python -m shelly report all --pdf` writes PDFs directly.
  4. Excel sheets: Dashboard (Category dropdown, KPI tiles, charts), Model (all formulas: SUMIFS, INDEX-MATCH, EDATE), Pivot (real PivotTables), Raw (Excel Table), Lookup, Assumptions (blue inputs), Notes (method, data dictionary, sign-off).
  5. Change the Category cell or any blue assumption and the whole workbook recalculates.

Method & formulas

Budget
Last year's same month × (1 + growth target)
Planning forecast
Last year's same period × recent 12-week trend (capped ±15%); weeks 1–3 blend in the daily models
Range
80th percentile of backtest errors (months: stand 3–6 months back; weeks: 13 weekly backtests)
Reorder
Safety stock = z × σ × √(lead + review); order up to capped by shelf life
Labour
Hours = forecast ÷ sales-per-hour target, never below the daily minimum

How to read it

Limits & safeguards

Ask Shelly

Make a budget for the next 3 months13-week forecast for DairyWeekly report in ExcelStock report for BeveragesRoster plan PDF

Type or say these in the chat on the main page.

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