Understanding the payroll

You are an HR specialist. Explain the composition of a CLT employee's payroll with salary [SALARY]: the deductions (INSS, IRRF), the employer's charges and provisions (FGTS, vacation, 13th month bonus), and the true total cost to the company (beyond the salary). Goal: understand how much an employee actually costs and how the payroll is composed. (Educational; official calculations depend on your accountant.)