Sanderson's Fine Furnishings manufactures upscale custom furniture. Sanderson's currently uses a plantwide overhead rate based on direct labor hours to allocate its $1,000,000 of manufacturing overhead to individual jobs. However, Margaret Garmon, owner and CEO, is considering refining the company's costing system by using departmental overhead rates. Currently, the Machining Department incurs $660,000 of manufacturing overhead while the Finishing Department incurs $340,000 of manufacturing overhead. Garmon has identified machine hours (MH) as the primary manufacturing overhead cost driver in the Machining Department and direct labor (DL) hours as the primary cost driver in the Finishing Department. (Click the icon to view the job information.) Read the requirements. Requirement 1. Compute the plantwide overhead rate assuming that Sanderson's expects to incur 20,000 total DL hours during the year. First identify the formula, then compute the rate. (Round your answer to the nearest whole dollar.) Plantwide overhead rate Requirement 2. Compute departmental overhead rates assuming that Sanderson's expects to incur 15,000 MH in the Machining Department and 17,000 DL hours in the Finishing Department during the year. First identify the formula, then compute the rate for each department. (Round your answers to the nearest whole dollar.) Machining Finishing Departmental overhead rate per mach. hour per DL hour Requirement 3. If Sanderson's continues to use the plantwide overhead rate, how much manufacturing overhead would be allocated to Job 450 and Job 455? First identify the formula, then calculate the amount of manufacturing overhead that would be allocated to the jobs if the plantwide overhead rate is used. (Round your answers to the nearest whole dollar.) Job 450 Job 455 = Manufacturing overhead allocated Requirement 4. If Sanderson's uses departmental overhead rates, how much manufacturing overhead would be allocated to Job 450 and Job 455? Use the following table to calculate the amount of manufacturing overhead that would be allocated to the jobs if the departmental overhead rates are used. (Round your answers to the nearest whole dollar.)