David & Co. has seven employees who are paid weekly. For hourly wage employees, overtime is paid at 1 1/2 times more than the regular rate of pay, for hours worked over 40 in a week.

Mary, the office manager, is paid a salary of $375.00 per week plus a bonus of 3 % of all revenue over $6,000 per week. Stan, an office assistant, is paid a salary of $250.00 per week plus 5% of all telephone sales made in the office.

David, the office secretary, is paid a salary of $230.00 per week. Justin and William, placement workers, are paid an hourly wage of $8.95. Fernando is also a placement worker but is paid a commission of $35.00 for every job placement completed. Ryan, a part-time maintenance worker, is paid $6.75 per hour. For the week ending October 24th, the office recorded the following payroll information:

Total office sales for the week were $8,420.00.
Justin worked for 38 1/2 hours.
William worked for 41 1/4 hours.
Phone sales for the week were $1,375.00.
Fernando made seven job placements.
Ryan worked a total of 23 hours.

Instructions: Calculate the gross earnings for the workers at David & Co. for the week ending October 24th. Analyze and identify the employee who had the highest gross earnings.