Roquan, a single taxpayer, is an attorney and practices as a sole proprietor. This year, Roquan had net business income of $90,000 from his law practice. Assume that Roquan pays $40,000 wages to his employees, he has $10,000 of property (unadjusted basis of equipment he purchased last year), and has no capital gains or qualified dividends. His taxable income before the deduction for qualified business income is $100,000. (Leave no answer blank. Enter zero if applicable.)

(a) Calculate Roquan’s deduction for qualified business income.
(b) Assume the same facts as earlier, except Roquan’s taxable income before the deduction for qualified business income is $100,000.