in 2020, Campbell, a single taxpayer, has $95,000 of profts (net of the deduction for self-employment taxes, the self-employed health insurance deduction, and the deduction for contributions to qualified self-employment retirement plans) from her general store, which she operates as a sole proprietorship. She has $50,000 of taxable income before the deduction for qualified business incorme. How much is Campbell's deduction for qualified business income?