Your boss approaches you in mid-December and requests that you pay certain employees their gross pay amount as if there were no deductions as their Christmas bonuses. None of the employees have reached the Social Security wage base for the year. What is the gross-up amount for each of the following employees? The tax rate on bonuses is 28%. The Social Security (6.2%) and Medicare taxes (1.45%) must be added to this rate. Yves St. John, regular gross pay per period $1425 Kim Johnson, regular gross pay per period $2,400 Michael Hale, regular gross pay per period $2,240