Determine the cost according to normality
According to normality: under this category cost may be categorized as follows:
Normal cost: it is the cost which is normally incurred at a given level of the output in the condition in which that level of the output is attained. It is charged to costing profit and loss account.
Abnormal cost: it is the cost which is not normally incurred at a given level of the output in the condition in which that level of the output is attained. It is charged to costing profit and loss account.