Problems s two types of computer printers, a laser model and an inkjet model, which pa departments,fabrication and assembly. The following data relate to the year just en Plantwide and departmental overhead rates: manufacturer Perfect Image Ltd produce through two production ended Assembly $135 000 90 000 12 375 P7.32 LO7.4 Fabrication $270 000 22 500 45 000 Budgeted overhead Expected activity (in direct labour hours) Expected activity (in machine hours) Actual overhead costs for the year were $450 000 Inkjet 112 500 S675 000 Laser 11 250 $90 000 Units produced Prime costs (material and labour) Direct labour hours used: Fabrication 1 500 30 000 Assembly 21 000 Machine hours used: 72 000 Fabrication Assembly 15 000 1 500 30 000 12 000 Required: Calculate the predetermined plantwide overhead rate based on direct labour hours. culate the per unit cost of the laser and inkjet printers, based on a plantwide overhead rate a Calculatet 2. at direct labour hours is the cost driver. d rate assuming e predetermined departmental overhead rates, assuming that machine hours is 3. Calculat the cost driver in labour hours is the cost driver in assembly fabrication and direct 4. Calculate the per unit cost of the laser and inkjet printers, based on the departmental overhead rates. 5 Estimate the amount of underapplied or overapplied overhead using: (a) a plantwide overhead rate b) departmental overhead rates 6. Which approach is best for Perfect Image, a plantwide overhead rate or departmental overhead rates? Why? redetermined plantwide overhead rate; different periods; pricing: manufacturer