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5.S: Marketing and Accounting Fundamentals (Summary)

  • Page ID
    22092
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    Key Concepts Summary

    5.1: Cost-Revenue-Net Income Analysis (Need to Be in the Know)

    • The three different types of costs
    • How to determine the unit variable cost
    • Calculating net income when you know total revenue and total cost
    • Calculating net income when you know the contribution margin
    • Comparing varying contribution margins by calculating a contribution rate
    • Integrating all of the concepts together

    5.2: Break-Even Analysis (Sink or Swim)

    • Explanation of break-even analysis
    • How to calculate the break-even point expressed in the level of output
    • How to calculate the break-even point expressed in total revenue dollars

    The Language of Business Mathematics

    blended cost

    A cost that comprises both fixed cost and variable cost components.

    break-even analysis

    An analysis of the relationship between costs, revenues, and net income with the sole purpose of determining the point at which total revenue equals total cost.

    break-even point

    A quantity that represents the level of output (in units or dollars) at which all costs are paid but no profits are earned, resulting in a net income equal to zero.

    contribution margin

    The amount each unit sold adds to the net income of the business.

    contribution rate

    A contribution margin expressed as a percentage of the selling price.

    cost

    An outlay of money required to produce, acquire, or maintain a product, which includes both physical goods and services.

    economies of scale

    The principle that, as production levels rise, per-unit variable costs tend to become lower as efficiencies are achieved.

    fixed cost

    A cost that does not change with the level of production or sales.

    net income

    The amount of money left over after all costs are deducted from all revenues.

    total fixed cost

    The sum of all fixed costs that a business incurs.

    total cost

    The sum of all costs for the company, including both the total fixed costs and total variable costs.

    total revenue

    The entire amount of money received by a company for selling its product, calculated by multiplying the quantity sold by the selling price.

    total variable cost

    The sum of all variable costs that a business incurs at a particular level of output.

    unit variable cost

    The assignment of total variable costs on a per-unit basis.

    variable cost

    A cost that changes with the level of production or sales.

    The Formulas You Need to Know

    Symbols Used

    \(CM\) = unit contribution margin

    \(CR\) = contribution rate

    \(n\) = number of pieces of data, which in this chapter is the level of output

    \(NI\) = net income

    \(S\) = unit selling price of the product

    \(TFC\) = total fixed cost

    \(TR\) = total revenue

    \(TVC\) = total variable cost

    \(VC\) = unit variable cost

    Formulas Introduced

    Formula 5.1 Unit Variable Cost: \(VC=\dfrac{TVC}{n}\)

    Formula 5.2 Net Income Using a Total Revenue and Cost Approach: \(NI=n(S)-(TFC+n(VC))\)

    Formula 5.3 Unit Contribution Margin: \(CM=S-VC\)

    Formula 5.4 Net Income Using Total Contribution Margin Approach: \(NI=n(CM)-TFC\)

    Formula 5.5 Contribution Rate if Unit Information Is Known: \(CR=\dfrac{CM}{S} \times 100\)

    Formula 5.6 Contribution Rate if Aggregate Information Is Known: \(CR=\dfrac{TR-TVC}{TR} \times 100\)

    Formula 5.7 Unit Break-Even: \(n=\dfrac{TFC}{CM}\)

    Formula 5.8 Dollar Break-Even: \(TR=\dfrac{TFC}{CR}\)

    Technology

    Calculator

    clipboard_e00b5517c461bda306e6e645d4950f938.png

    Net Income or Break-Even

    • 2nd Brkevn to open the function
    • To clear the memory before entering any data, press 2nd CLR Work after opening the function. Use and to scroll through the function.
    • Enter four of the following variables and press Enter after each to save:

    \(FC\) = Total fixed costs

    \(VC\) = Unit variable cost

    \(P\) = Selling price per unit

    \(PFT\) = Net income

    \(Q\)= Level of output

    • Press CPT on the unknown variable (when it is on the screen display) to compute.

    Contributors and Attributions


    This page titled 5.S: Marketing and Accounting Fundamentals (Summary) is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Jean-Paul Olivier via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.