Need to enter a formula into each cell that has a "?" in it to satisfy the question. Please help. Thank you.

Chapter 3: Applying Excel Data Allocation base Estimated manufacturing overhead cost Estimated total amount of the allocation base Actual manufacturing overhead cost Actual total amount of the allocation base Machine-hours $300,000 75,000 machine-hours $290,000 68,000 machine-hours Enter a formula into each of the cells marked with a? below Computation of the predetermined overhead rate Estimated manufacturing overhead cost Estimated total amount of the allocation base Predetermined overhead rate $300,000 75,000 machine-hours $4.00 per machine-hour Computation of underapplied or overapplied manufacturing overhead Actual manufacturing overhead cost Manufacturing overhead cost applied to Work in Process during the year: Predetermined overhead rate Actual total amount of the allocation base Manufacturing overhead applied ? per machine-hour ?machine-hours Underapplied (overapplied) manufacturing overhead