Landen Corporation uses a job-order costing system. At the beginning of the year, the company made the following estimates: During the year, Job 550 was started and completed. The following information is available with respect to this job- Required: 1. Assume that Landen has historically used a plantwide predetermined overhead rate with direct labor-hours as the allocation ba Under this approach: a. Compute the plantwide predetermined overhead rate b. Compute the total manufacturing cost of Job 550 c. If Landen uses a markup percentage of \200 of its total manufacturing cost, what selling price would it establish for Job 550 ? 2. Assume that Landen's controller believes that machine-hours is a better allocation base than direct labor-hours. Under this approach: a. Compute the plantwide predetermined overhead rate. \\( b= \\) Compute the total manufacturing cost of Job 550 c. If Landen uses a markup percentage of \20.0 of its total manufacturing cost, what selling price would it establish for Job 550 ? (Round your intermediate calculations to 2 decimal places. Round your Predetermined Overhead Rate onswers to 2 decimal places and all other answers to the nearest whole dollar.)