Perez Company has the following information for the pay period of January 15–31: Gross payroll $20,000 Federal income tax withheld $2,500 Social security rate 6.0% Federal unemployment tax rate 0.8% Medicare rate 1.5% State unemployment tax rate 5.4% Assuming no employees have reached the maximum earnings for any taxes, compute salaries payable and the employer’s payroll tax expense.