Proration Rules

You can use a proration rule to prorate a value when segmentation occurs. A proration rule generally works in conjunction with segmentation.

A proration rule defines a numerator and a denominator to apply to an amount during segmentation. A proration rule defines the from and to dates for a count.

As an example, for a calculation period of June 1–30, with one segment from June 1 to June 10, you define the numerator as the time of the segmentation (June 1 to June 10) and the denominator as the time of the entire calculation period (June 1 to June 30). Therefore, you set up your formula as 10/30, and the proration rule resolves to .333 (10/30).