Calculating labor costs involves summing up all expenses related to employment. This includes: 1. Wages and Salaries: The gross pay before any deductions. 2. Payroll Taxes: Employerâs contribution to Social Security, Medicare, and unemployment insurance. 3. Benefits: Health insurance, retirement contributions, and other perks. 4. Overtime Pay: Additional compensation for hours worked beyond the standard workweek. 5. Training and Development Costs: Expenses incurred in upskilling employees.