Sales forecasting

Additive Holt-Winters over four years of monthly history, computed in the browser.

Every figure in this demo is synthetic and generated from a fixed seed. There is no client data here.

Next month forecast

1,091

2026-08

Model error (MAPE)

3.3%

Measured on the last 12 months, which the model never saw while fitting.

Year on year

+8.6%

Growing

Last 12 months

13,214

units

History and projection

800950110012501400

Solid line, observed sales. Dashed line, the 6 projected months.

Monthly detail

Most recent observed months and the projection, in units.
MonthUnitsSource
2026-021,062Observed
2026-031,011Observed
2026-041,182Observed
2026-051,126Observed
2026-061,248Observed
2026-071,220Observed
2026-081,091Forecast
2026-091,087Forecast
2026-101,136Forecast
2026-111,151Forecast
2026-121,166Forecast
2027-011,115Forecast