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Excel Sales Forecasting Help - Model Build

$499

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.

Frequently asked questions
Excel Sales Forecasting Help - Model Build | Whop