(Engineered cost variances) Orangeburg Courier employs three drivers who are paid an average of $8 per hour for regular time and $12 for overtime. A pickup and delivery requires, on average, one hour of driver time. Drivers are paid for a 40-hour week because they must be on call all day. One driver stands by for after-hour deliveries.

Analyze the labor costs for one week in which the company made 105 daytime deliveries and 12 after-hour deliveries. The payroll for drivers for that week was $1,140. The employees worked 120 hours regular time and 15 hours overtime.