Excel Sales Forecasting Help - Model Build
Monthly CSV forecast, holdout validation, error metrics, and dashboard
Get one practical Excel sales forecasting workbook built around your monthly CSV or spreadsheet data.
Inspect a fictional-data, formula-driven model before buying: https://www.freelancer.com/u/tinyopsezr/portfolio/illustrative-operations-valuation-14033515
Fixed scope:
One clean monthly dataset, up to 60 historical months, and one target metric
Power Query refresh when the CSV structure is compatible, or a documented table refresh otherwise
Seasonal-naive baseline plus one transparent trend-seasonal or regression model
Held-out validation with MAE, RMSE, and MAPE
12-month forecast with a labeled scenario range
Dashboard comparing actuals, baseline, selected model, and forecast
Visible formulas, assumptions, checks, update guide, and one revision
Delivery is within five business days after complete, usable inputs arrive through private Whop project chat. TinyOps returns one unlocked Excel workbook with no macros or external scripts.
Provide one clean monthly CSV or workbook with date, sales, currency, and known structural breaks. TinyOps does not reconstruct source records, purchase data, forecast multiple products or regions, build live database connections, provide bookkeeping, or guarantee results.
Forecasts are planning estimates based on buyer-provided data. They are not accounting, tax, investment, or legal advice.




















