Choose a practical forecast horizon from the launch phase through maturity and decline.
Forecast a product from first stock to lifetime profit.
Build a month-by-month commercial model for a marketplace, quick-commerce or D2C product. Test demand, pricing, returns, fees, advertising, costs and inventory before committing more cash.
Compare conservative, base and aggressive demand, price, cost and advertising assumptions.
See how lifetime profit changes across lower, base and higher demand and selling price.
Track working capital, launch cost, operating profit, estimated tax and cash breakeven.
Launch, ramp, maturity, seasonality and decline.
A one-order calculator cannot show when inventory cash returns, how annual price erosion affects contribution, or whether a product still works after costs rise. The Forecast Lab connects those decisions in one model.
It calculates lifetime revenue and net profit after launch cost, monthly operating profit, cumulative cash, estimated tax, return burden, peak sales month, operating break-even units, target profit gap and return on initial cash.
Build the base case
Start with your expected launch demand and true per-order economics. The model compounds demand and adjusts price and costs month by month.
Stress-test the plan
Compare conservative and aggressive cases, then use the nine-cell price-demand sensitivity grid to reveal how much downside the SKU can absorb.
Export the decision
Download a detailed CSV or print the forecast report. After launch, replace assumptions with actual seller data and rerun the model.
The Forecast Lab is an assumption-driven planning tool, not a guarantee of demand, sales or profit and not financial advice. Marketplace terms, taxes and category economics vary. Validate inputs against your agreements and actual performance.