2007 LUF hour. u standard cost per unit. E11-4 Monte Services, Inc. is trying to establish the standard labor cost of a typical oil change. The following data have been collected from time and motion studies conducted over the past month. Actual time spent on the oil change 1.0 hour Hourly wage rate $12 Payroll taxes 10% of wage rate Setup and downtime 20% of actual labor time Cleanup and rest periods 30% of actual labor time Fringe benefits 25% of wage rate Instructions (a) Determine the standard direct labor hours per oil change. (b) Determine the standard direct labor hourly rate. (c) Determine the standard direct labor cost per oil change. (d) If an oil change took 1.6 hours at the standard hourly rate, what was the direct labor quantity variance