Job Order Cost Accounting Battle Manufacturing uses a job order cost accounting system. On October 1, the company has a balance in Work in Process Inventory of $5,500 and two jobs in process: Job No. 429, $3,000 and Job No. 430, $2,500. During October, a summary of source documents reveals the following: For Materials Requisition Slips Labor Time Tickets Job No. 429 $ 4,500 $ 6,400 Job No. 430 2,600 3,400 Job No. 431 3,400 4,200 Job No. 432 3,000 4,000 General Use 1,000 1,500 $14,500 $19,500 Battle Manufacturing applies manufacturing overhead to jobs at an overhead rate of 70% of direct labor cost. Job No. 429 is completed during the month. Instructions (a) Prepare summary journal entries to record the requisition slips, time tickets, the assignment of manufacturing overhead to jobs, and the completion of Job No. 429. Show computations. (b) Answer the following questions. 1. What is the balance in Work in Process Inventory at October 31? 2. If Battle Manufacturing incurred $9,000 of manufacturing overhead in addition to indirect materials and indirect labor, was overhead over- or underapplied in October and by how much