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A Forum to discuss Public Health Issues in Pakistan

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    Fixed Cost, Variable Cost, Marginal and Total Costs

    Dr Abdul Aziz Awan
    Dr Abdul Aziz Awan


    Pisces Number of posts : 685
    Age : 56
    Location : WHO Country Office Islamabad
    Job : National Coordinator for Polio Surveillance
    Registration date : 2007-02-23

    Fixed Cost, Variable Cost, Marginal and Total Costs Empty Fixed Cost, Variable Cost, Marginal and Total Costs

    Post by Dr Abdul Aziz Awan Mon Dec 15, 2008 8:56 pm

    DEFINITIONS OF FIXED COSTS
    (1) Fixed costs are business expenses that are not dependent on the level of production or sales. They tend to be time-related, such as salaries or rents being paid per month.
    (2) A cost that does not vary depending on production or sales levels, such as rent, property tax, insurance, or interest expense.
    (3) A cost that remains constant, regardless of any change in a company's activity.

    DEFINITIONS OF VARIABLE COSTS
    (1) A cost that remains constant, regardless of any change in a company's activity.
    (2) A cost of labor, material or overhead that changes according to the change in the volume of production units. Combined with fixed costs, variable costs make up the total cost of production. While the total variable cost changes with increased production, the total fixed costs stays the same.
    Variable costs are corporate expenses that vary in direct proportion to the quantity of output. Unlike fixed costs, which remain constant regardless of output, variable costs are a direct function of production volume, rising whenever production expands and falling whenever it contracts. Examples of common variable costs include raw materials, packaging, and labor directly involved in a company's manufacturing process. The formula for calculating total variable cost is:
    Total Variable Cost = Total Quantity of Output * Variable Cost Per Unit of Output
    The term variable cost is not to be confused with variable costing, which is an accounting method related to reporting variable costs.
    How it Works/Example:
    Let's assume XYZ Company has received an order for 5,000 widgets for a total sales price of $5,000 and wants to determine the gross profit that will be generated by completing the order. First, the variable costs per widget must be determined. Let's assume the following:
    Annual Widgets Produced - 100,000
    Raw Materials Costs - $10,000
    Direct Labor Costs - $50,000
    From this information, we can conclude that each widget costs 10 cents ($10,000/100,000 widgets) in raw materials and 50 cents ($50,000/100,000 widgets) in direct labor costs. Using the formula above, we can calculate that XYZ Company's total variable cost on the order is:
    5,000 * ($0.10 + $0.50) = $3,000
    Therefore, the company can reasonably expect to earn a $2,000 gross profit ($5,000 - $3,000) from the order.
    Why it Matters:
    While fixed costs, such as rent or other overhead, generally remain level, variable costs will correlate with the number of products manufactured. Because average variable costs differ widely among industries, comparisons are generally most meaningful among companies operating within the same industry. When analyzing a company's income statement, it should be remembered that rising costs are not necessarily a troubling sign. Whenever sales rise, more units must first be produced (excluding the impact of stronger pricing), which in turn means that variable production costs must also increase. Thus, for revenues to climb, expenses must also rise accordingly. It is important, though, that revenues increase at a faster rate than expenses. If, for example, a company reports volume growth of 8%, while cost of goods sold (COGS) only rises 5% over the same span, then costs have likely declined on a per unit basis. If a company can find ways to reduce the input costs associated with producing each item it sells, then its profitability will improve. One way to monitor this aspect of a company's business is to divide variable costs by total revenues to figure costs as a percentage of sales. Variable costs frequently factor into profit projections and the calculation of break-even points for a business or project. Some costs change in a piecewise manner as output changes and therefore may not remain constant per unit of output. Also, note that many cost items have both fixed and variable components. For example, management salaries typically do not vary with the number of units produced. However, if production falls dramatically or reaches zero, then layoffs may occur. This is evidence that all costs are variable in the long run. A company with a large number of variable costs (compared to fixed costs) may exhibit more consistent per-unit costs and hence more predictable per-unit profit margins than a company with fewer variable costs. However, a company with fewer variable costs (and hence a larger number of fixed costs) may magnify potential profits (and losses) because revenue increases (or decreases) are applied to a more constant cost level.
    Dr Abdul Aziz Awan
    Dr Abdul Aziz Awan


    Pisces Number of posts : 685
    Age : 56
    Location : WHO Country Office Islamabad
    Job : National Coordinator for Polio Surveillance
    Registration date : 2007-02-23

    Fixed Cost, Variable Cost, Marginal and Total Costs Empty Re: Fixed Cost, Variable Cost, Marginal and Total Costs

    Post by Dr Abdul Aziz Awan Mon Dec 15, 2008 8:57 pm

    DEFINITION MARGINAL COST
    (1) In economics and finance, marginal cost is the change in total cost that arises when the quantity produced changes by one unit. Mathematically, the marginal cost (MC) function is expressed as the derivative of the total cost (TC) function with respect to quantity (Q). Note that the marginal cost may change with volume, and so at each level of production, the marginal cost is the cost of the next unit produced. To see a typical Marginal Cost Curve, click the link below;
    https://i.servimg.com/u/f70/11/10/02/04/mc10.gif

    MC= dTC/dQ
    In general terms, marginal cost at each level of production includes any additional costs required to produce the next unit. If producing additional vehicles requires, for example, building a new factory, the marginal cost of those extra vehicles includes the cost of the new factory. In practice, the analysis is segregated into short and long-run cases, and over the longest run, all costs are marginal. At each level of production and time period being considered, marginal costs include all costs which vary with the level of production, and other costs are considered fixed costs. A number of other factors can affect marginal cost and its applicability to real world problems. Some of these may be considered market failures. These may include information asymmetries, the presence of negative or positive externalities, transaction costs, price discrimination and others.
    (2) The cost of producing an additional unit of output. Marginal cost is the opposite of the fixed or overhead cost. The formula is. MC= dTC/dQ
    In general terms, marginal cost at each level of production includes any additional costs required to produce the next unit. If producing additional vehicles requires, for example, building a new factory, the marginal cost of those extra vehicles includes the cost of the new factory. In practice, the analysis is segregated into short and long-run cases, and over the longest run, all costs are marginal. At each level of production and time period being considered, marginal costs include all costs which vary with the level of production, and other costs are considered fixed costs. A.C.O.
    Cost functions and relationship to average cost
    In the most simple case, the total cost function and its derivative are expressed as follows, where Q represents the production quantity, VC represents variable costs, FC represents fixed costs and TC represents total costs.
    MC= dTC/dQ= d(FC+VC/dQ = dVC/dQ
    Since (by definition) fixed costs do not vary with production quantity, it drops out of the equation when it is differentiated. The important conclusion is that marginal cost is not related to fixed costs. This can be compared with average total cost or ATC, which is the total cost divided by the number of units produced and does include fixed costs.
    ATC=FC+VC/Q
    For discrete calculation without calculus, marginal cost equals the change in total (or variable) cost that comes with each additional unit produced. For instance, suppose the total cost of making 1 shoe is $30 and the total cost of making 2 shoes is $40. The marginal cost of producing the second shoe is $40 - $30 = $10.
    DEFINITION OF TOTAL COST
    DIAGRAM
    https://i.servimg.com/u/f70/11/10/02/04/total_10.png

    Definitions:
    (1) In economics, and cost accounting, total cost (TC) describes the total economic cost of production and is made up of variable costs, which vary according to the quantity of a good produced and include inputs such as labor and raw materials, plus fixed costs, which are independent of the quantity of a good produced and include inputs (capital) that cannot be varied in the short term, such as buildings and machinery. Total cost in economics includes the total opportunity cost of each factor of production in addition to fixed and variable costs. The rate at which total cost changes as the amount produced changes is called marginal cost;this is the marginal unit variable cost. If one assumes that the unit
    variable cost is constant, as in cost-volume-profit analysis, then total cost is linear in volume, and given by TC = FC + unit VC * N.
    (2) In accounting, the sum of fixed costs, variable costs, and semi-variable costs.
    See this document also;
    http://greenbusinesscentre.com/Documents/Total%20Cost%20Management%20for%20Competitiveness.pdf

      Current date/time is Wed Oct 16, 2024 3:28 pm