Under which circumstances could the percentage method be used to determine federal income tax withholding amounts? (You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer. Any boxes left with a question mark will be automatically graded as incorrect.) When using a computerized accounting system to compute payroll deductions. When the employee's taxable income exceeds the maximum amount on the appropriate wage-bracket table. When using a manual accounting system for a small number of low-pay employees. When computational accuracy is critical.