Required: 1. Assume that Landen has histotically used a plantwide predetermined overhead rate with direct labor hours as the allocation base. 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 peicentage of 200% of its total manufacturing cost, what selling price would it establish for Job 550 ? (Round your intermediote calculotions to 2 decimol ploces. Round your Predetermined Overhead Rate answers to 2 decimal ploces and oll other answers to the nearest whole dollor.)