Exercise 2-19 (LO. 3, 4) Thad, a single taxpayer, has taxable income before the QBI deduction of $190,700. Thad, a CPA, operates an accounting practice as a single member LLC (which he reports as a sole proprietorship). During 2019, his proprietorship generates qualified business income of $150,000, W-2 wages of $125,000, and $10,000 of qualified property. Assume the QBI amount is net of the self-employment tax deduction. What is Thad's qualified business income deduction? $