Problem 4 Saul Company used a predetermined overhead rate based on an estimate of 22,000 direct labor hours to be worked during the year and an estimated $77,000 of manufacturing overhead. Actual overhead cost and activity during the year were: Actual manufacturing overhead cost incurred $80,000 Actual direct labor hours worked 24,000 a. Compute the predetermined OH rate. b. Compute the OH applied. c. Compute the over or underapplied OH. d. Prepare the journal entry to close the OH