Exercise 10.6 (Algo) Determining social security withholding. LO 10-3 The monthly salaries for December and the year-to-date earnings of the employees of Lincoln Project Company as of November 30 follow. Determine the amount of social security tax to be withheld from each employee's gross pay for December. Assume a 6.2 percent social security tax rate and an earnings base of $142,800 for the calendar year. Note: Round your answers to 2 decimal places