PSc 3-3: Calculate Federal Income Tax Withholding Using the Wage-Bracket Method :or each employee listed, use the wagebracket method to calculate federal income tax withholding: 1. Phil McGlynn (Married; three federal withholding allowances) earned weekly gross pay of $750. For each period, he makes a 403(b) retirement plan contribution of 6% of gross pay. 2. Gary Williams (Single; one federal withholding allowance) earned biweekly gross pay of $1,920. He participates in a exible spending account, to which he contributes $50 during the period. 3. Lila Downing (Single; ve federal withholding allowances) earned monthly gross pay of $5,285. For each period, she makes a 401(k) contribution of 8% of gross pay. 4. Billie Hall (Married; two federal withholding allowances) earned semimonthly gross pay of $2,250. She participates in a cafeteria plan, to which she contributes $250 during the period