2. Change all of the numbers in the data area of your worksheet so that it looks like this: 4 Allocation base Machine-hours Estimated manufacturing overhead cost Estimated total amount of the allocation base Actual manufacturing overhead cost Actual total amount of the allocation base $468,000 72,000 machine- hours $480,800 78,000 machine- hours 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.) Predetermined overhead rate per machine- hour (b)By how much is the manufacturing overhead underapplied or overapplied? manufacturing overhead