The revenue a period would produce if the current pace continued: the trailing period's revenue, or the average of recent periods, projected forward. The baseline a forecast bridge starts from.
A forecast above run rate is a claim that something will change. The bridge names the deals that make the claim true, and the slip count says how often those deals have failed to close before.
Revenue over a trailing window scaled to a full period, adjusted by the seasonal index where the business is seasonal.
Year to date through August is $7.5 million. Scaled by eight twelfths it gives $11.25 million. Those months normally carry 62.6 percent of the year, which gives $11.98 million.
A straight-line scaling in a seasonal business, which understates every year whose strong months are still to come.