An Exempt Organization Owns a Building for Which Its Adjusted

An exempt organization owns a building for which its adjusted basis is $100,000 at the beginning of the year and $90,000 at the end of the year. One-half of the ground floor is leased to a commercial venture for $10,000 per year. The remainder of the first floor and all of the second floor are used by the exempt organization in carrying out its mission. When the exempt organization constructed the building 20 years ago, it incurred a mortgage of $150,000. The final payment of this mortgage was made in December of the current year. The average acquisition indebtedness for the current year is $30,000. Determine to what extent the building is debt-financed property, the amount of debt-financed income, and the portion of debt-financed income that is treated as unrelated business income.
The building is not classified as debt-financed property if substantially all (at least 85%) of the use is for the achievement of the exempt purpose of the exempt organization. Since only 75% of the building's usage satisfies this requirement, 25% of the building is classified as debt-financed property.