Tammy, a single taxpayer, owns and operates LittleCo, a sole proprietorship that is a qualified trade or business. Tammy has $100,000 in qualified business income from LittleCo. She has no other items of income or loss and $25,000 of itemized deductions. Assume the QBI amount is net of the self-employment tax deduction. What is her qualified business income deduction for 2020