The Zaf Radiator Company uses a normal-costing system with a single manufacturing overhead cost pool and machine-hours a the cost-allocation base. The following data are for 2020: (Click the icon to view the following data.) Read the requirements. Requirements 1. Compute the budgeted manufacturing overhead rate for 2020 . 2. Compute the under- or overallocated manufacturing overhead of Zaf Radiator in 2020. Adjust for this amount using the following: a. Write-off to Cost of Goods Sold b. Proration based on ending balances (before proration) in Work-in-Process Control, Finished Goods Control, and Cost of Goods Sold c. Proration based on the overhead allocated in 2020 (before proration) in the ending balances of Work-in-Process Control, Finished Goods Control, and Cost of Goods Sold 3. Which method do you prefer in requirement 2? Explain. lachine-hours data and the ending balances (before proration of under- or overallocated overhead) are as follows