Therefore, abandonment of rent is considered as opportunity cost to use office space and it is included in operational cost (Stice, Earl Stice, Monte Swain 739). Expenditure costs are actual expenses incurred by the company to acquire or produce goods or services (Atrill and McLaney 46). For example, Samsung's expenditure on the manufacture of refrigerators, televisions, telephones and other electronic products is the cost of expenditure. In the case of Samsung, the cost is usually the cost of purchasing raw materials and paying wages (Drury 36).
In microeconomics, two kinds of costs, marginal cost and fixed cost, are important. Marginal cost is the cost of a company that is serving more customers. In industries where natural monopoly does not exist, the marginal cost of most industries declines with the economy of scale and increases with the increase in company pain (excessive labor, bureaucracy, inefficiency, etc.). At the same time, the average cost of the product is also falling and increasing. Natural monopoly has a very different cost structure. For products that do not depend on production, natural monopolies have higher fixed costs, but marginal costs for producing more products are nearly constant and smaller.
Commerce has various kinds of expenses. For pricing purposes, the industry needs to classify costs. For example, direct costs, overhead costs, fixed costs etc. Each of these expenses has a separate unit. In pricing and cost accounting, companies need to calculate the unit price to ensure cost. Then, they have to deal with the following problems: raw materials, utilities, rent etc. Then, they have to determine the price, but this depends on the company's average cost to product value and customer perception. For pricing purposes, you need to calculate some important costs, such as cost plus, marginal cost, price acquirer. In this case, it is necessary to decide which contractor paid the cost incurred, and pay the contractor's profit as cost plus at the agreed cost. In addition, the company must calculate the marginal cost. Marginal cost only allocates variable costs. In other words, fixed production costs are not taken into account.