n: 3-79 (Static) Rathburn, Incorporated is a service firm that uses burn, Incorporated is a service firm that uses process costing. The firm worked on a SE_ ) hi h were completed during the period. The remaining cases were 40% complete. The firm incurred d overhead costs during the period, and had $4,800 in direct labor and overhead costs in beginning ighted-average method, what was the total cost of cases still in process at the end of the _um:,,o' u $16,800 17520 Prev 29 of 2F sesaveariEeRs