Problem 4. Rocky Tailoring has three departments: design, machine sewing, and beading. The design department overhead consists of computers and software for computer-assisted design. The machine sewing department overhead consists of thread, sewing machines, and small tools. The beading department has very little overhead, just thread and some glue and all departments are assigned a share of utilities, rent, and others. Information on estimated overhead and direct labor hours for the year by department are as follows Estimated Overhead Estimated DLH Design department P110,000 4,000 Sewing department 84,000 14,000 Beading department 6,000 2,000 Rocky Tailoring has just accepted a contract for forty new tutus for the nutcracker ballet. The costs are direct materials, P30, 000, direct labor. 25 hrs. At P25 per hr. of Design works, 320 hours of sewing time at P15 per hour and 200 hours of beading at P20 per hr. Rocky Tailoring uses plant wide rate based on direct labor hours for overhead application and charges customers at cost plus 30%. REQUIRED: a) Compute for the pre-determined overhead rate b) Compute for the total overhead applied to the job c) Determine the total cost of the job d) Determine the billing price