Plantwide overhead rate cost objects
Since overhead rate is an estimate used to calculate the value of cost of goods sold and inventory, large differentiation in overhead inputs will skew calculations. For example, if there are significant labor hours in one department where labor costs are cheap, a departmental rate would prevent a case where labor is overvalued because of a much higher company-wide rate. A Use the activity overhead rates to assign overhead costs to cost objects. Q3. Which types of overhead allocation methods result in the use of more than one overhead rate during the same time period? Plantwide overhead rate method and departmental overhead rate method. Cost pool overhead rate method and plantwide overhead rate method. Accountingwise, the main reasons for dividing a plant into separate departments are: (1) more accurate costing of jobs and products and (2) responsible control of overhead costs. More accurate costing of jobs and products is possible because departmentalization uses different departmental overhead rates for applying factory overhead.