2. Change all of the numbers in the data area of your worksheet so that it looks like this Chapter 2: Applying Excel 3 Data 4 Allocation base 5 Estimated manufacturing overhead cost 6 Estimated total amount of the allocation base Machine-hours $147,000 35,000 machine- hours 7 Actual manufacturing overhead cost $133,800 38,000 hours machine 8 Actual total amount of the allocation base If your formulas are correct, you should get the correct answers to the following questions (a) What is the predetermined overhead rate? (Round your answer to 2 decimal places.) redetermined overhea per machine- hour (b) By how much is the manufacturing overhead underapplied or overapplied? manufacturing ead