Murtos Manufacturing Company uses a job order cost system in each of its three manufacturing departments. Manufacturing overhead is applied to jobs on the basis of direct labor cost in Department D, direct labor hours in Department E, and machine hours in Department K.

In establishing the predetermined overhead rates for 2011 the following estimates were made for the year.

During January, the job cost sheets showed the following costs and production data.

Instructions
(a) Compute the predetermined overhead rate for each department.
(b) Compute the total manufacturing costs assigned to jobs in January in each department.
(c) Compute the under- or overapplied overhead for each department at January31.

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Department Manufacturing overhead $1,050,000 $1,500,000 $840,000 $1,500,000 $1,250,000 $450,000 40,000 500,000 120,000 Direct labor costs Direct labor hours Machine hours 125,000 100,000 400,000 Department Direct materials used Direct labor costs $140,000 $126,000 $78,000 $120,000 $110,000 $37,500 Manufacturing overhead incurred 89,000 $124,000 $74,000 3,500 10,400 Direct labor hours Machine hours 8,000 34,000 11,000 45,000