(3) The sales factor is a fraction the numerator of which is the total sales in this state by the trust during the taxable year, and the denominator of which is the total sales by the trust everywhere during such year. In determining the numerator and denominator of the fraction, receipts from the sale or other disposal of a capital asset or an asset described in section 1231 of the Internal Revenue Code shall be eliminated. Also, in determining the numerator and denominator of the sales factor, in the case of a trust owning at least eighty per cent of the issued and outstanding common stock of one or more insurance companies or public utilities, except an electric company and a combined company, and, for tax years 2005 and thereafter, a telephone company, or owning at least twenty-five per cent of the issued and outstanding common stock of one or more financial institutions, receipts received by the trust from such insurance companies, utilities, and financial institutions shall be eliminated. For the purpose of this section and section 5747.08 of the Revised Code, sales of tangible personal property are in this state where such property is received in this state by the purchaser. In the case of delivery of tangible personal property by common carrier or by other means of transportation, the place at which such property is ultimately received after all transportation has been completed shall be considered as the place at which such property is received by the purchaser. Direct delivery in this state, other than for purposes of transportation, to a person or firm designated by a purchaser constitutes delivery to the purchaser in this state, and direct delivery outside this state to a person or firm designated by a purchaser does not constitute delivery to the purchaser in this state, regardless of where title passes or other conditions of sale.
Sales, other than sales of tangible personal property, are in this state if either:
(a) The income-producing activity is performed solely in this state; or(b) The income-producing activity is performed both within and without this state and a greater proportion of the seller's income-producing activity is performed within this state than in any other state, based on costs of performance.