Direct labor cost Direct labor-hours Machine-hours Required: $225 15 5 1. Assume that Landen has historically 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 percentage of 200% 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 answers to 2 decimal places and all other answers to the nearest whole dollar.) 1. Direct labor-hours: 1a. Predetermined overhead rate 1b. Total manufacturing cost of Job 550 1c. Selling price 2. Machine-hours: per DLH 2a. Predetermined overhead rate per MH 2b. Total manufacturing cost of Job 550 20. Selling price