Where does the "Business use of home office" percentage mentioned in a prior answer come from? I checked the box in turbotax deluxe that says "I do all of this business from home." Assume I have gross business income of 10,000 and business expenses of 8,000 (supplies, etc, but not utilities or mortgage, etc.) for a net profit of $2,000. Yet Turbotax says I have no profit and the turbotax worksheet shows -$8,000 income. Still confused.
