Demand forecasting: Definition, Formula & Why It Matters

Demand forecasting estimates future sales using historical data, trends, and seasonality. It is the foundation for purchasing, inventory planning, and cash flow. Methods range from a simple moving average to weighted models.

Example

Averaging the last several months of sales gives a baseline forecast for the next period.

Why it matters for Reverb sellers

Accurate forecasting is the biggest lever for avoiding both stockouts and overstock. For a cash-constrained shop, getting it roughly right protects both sales and working capital.

How Verbstack helps

Verbstack turns your sales history into demand signals so you can plan purchases ahead of need.

Track this on every order, automatically.

  • Real fees, margins, and profit on every Reverb sale
  • COGS and inventory tracked for you, no spreadsheet
  • Full history and a live monthly P&L
Get started free

Free forever to get started. No credit card required.

← Back to the glossary

See this number on every order.

Connect your Reverb shop and Verbstack tracks your fees, margins, and profit automatically.

Get started free

Free forever to get started. No credit card required.