Approximation Based Upon Known Sales

When, by applying the rules set forth in Sections .0900 through .1000 of this Subchapter, a taxpayer can ascertain the state or states of assignment of a substantial portion of its receipts from sales of substantially similar services and the taxpayer reasonably believes that the geographic distribution of the remainder of its sales tracks that of the assigned receipts, the taxpayer shall include the receipts from those sales in its sales factor in the same proportion as its assigned receipts. This Rule applies in the context of licenses and sales of intangible property where the substance of the transaction resembles a sale of goods or services.