Rodney Worsham is paid $20 an hour for straight-time and $40 an hour for overtime. One week he worked 50 hours, which included 40 hours of regular time and 10 hours of overtime. The 10 hours of overtime include: 4 hours of idle time caused by material shortages; 4 hours of overtime due to bad scheduling; and 2 hours caused by a special request from a customer who made a late order. How much is charged as direct labour and indirect labour