rate base

noun

1. a guaranteed minimum amount or number used to compute advertising rates, as the number of subscribers to a publication.
2. a basic amount or number used to compute charges to a customer, as the number of monthly phone calls.
3. the valuation of property upon which tax rates are based.

Example Sentences

It is hard to sell a magazine subscription alone to an audience under 40 these days, and if that ad revenue is still a primary source of revenue, their print rate base matters a lot.

From Digiday

By these accounts, the rate-base cut and other changes were driven by Ascheim and his team.

From The Daily Beast