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Contemporary Engineering Economics, 4 th edition, © 2007 Cost-Volume-Profit Analysis Lecture No. 30 Chapter 8 Contemporary Engineering Economics Copyright © 2006
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Contemporary Engineering Economics, 4 th edition, © 2007 Illustration of Full Cost Concept + + + + Direct Material Cost = Direct Labor Cost Prime Cost Overhead Cost = Selling Cost General and Administrative Cost Full Production Cost (or Inventory Cost) Full Cost
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Contemporary Engineering Economics, 4 th edition, © 2007 Break-Even Chart (Fixed Manufacturing Overhead)- (Depreciation) Fixed Selling and Administrative Expense Variable Selling and Administrative Expense Variable Mfg., Overhead Direct Labor $600 500 400 300 200 100 10 18 2030405060 Point of Desired Profit Total Cost Line Cash Cost Line Direct Material Desired Profit (Fixed Manufacturing Overhead)- (Depreciation) DEPRECIATION Fixed Selling and Admins Expense Variable Selling and Admins Expense Variable Mfg., Overhead Direct Labor Units of Product (in thousands) Dollars (in thousands)
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Contemporary Engineering Economics, 4 th edition, © 2007 Cost Data for Break-Even Chart Unit Variable Costs Direct Materials$2.00 Direct Labor1.00 Variable Manufacturing Overhead1.00 Variable Selling and Administrative Expenses 1.00 Total Unit Variable Cost$5.00 Fixed manufacturing overhead (including Depreciation of $10,000) = $70,000 Fixed Selling and Administrative Expenses = $30,000 Selling Price/Unit = $10 Desired Profit before Taxes = $100,000
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Contemporary Engineering Economics, 4 th edition, © 2007 Def: Difference between the unit sales price and the unit variable cost MC = Sales price – Variable cost Application: Break- even volume analysis: Unit Marginal Contribution
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Contemporary Engineering Economics, 4 th edition, © 2007 Break-Even Analysis Formulas
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Contemporary Engineering Economics, 4 th edition, © 2007 Useful Break-even Sales Formulas
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Contemporary Engineering Economics, 4 th edition, © 2007 Profit-Volume Graph PROFITS ($000’s) LOSSES ($000’s) 102030405060 $100 0 $200 $100$200$300$400$500$600 Point of Desired Profit Profit Line Slope of profit line is the marginal contribution $200 UNITS OF PRODUCT (000’s) SAME COST DATA AS USED FOR BREAK-EVEN CHART Fixed cost
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Contemporary Engineering Economics, 4 th edition, © 2007 Effect of Variable Costs on Sales Company 1Company 2Company 3 Number of Units Sold70,000 Unit Selling Price$10.00 Unit Variable Cost7.006.508.00 Unit Marginal Contribution3.003.502.00 % Marginal Contribution30%35%20% Total Marginal Contribution$210,000$245,000$140,000 Fixed Costs150,000 Net Profit (loss) before taxes$60,000$95,000($10,000) The Profit/Volume Graph shows profits (losses) at different operating levels for the three companies.
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Contemporary Engineering Economics, 4 th edition, © 2007 $200 $100 0 $100 $200 20406080100 35% MCR30% MCR 20% MCR 2 3 1 Units of Product Sold (000’s) An increase in the selling price with variable costs fixed has the same analysis Break-even Chart
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Contemporary Engineering Economics, 4 th edition, © 2007 Effect of Fixed Costs Selling price per unit= $6.00 Variable cost per unit= $3.00 Unit marginal Contribution= $3.00 Current fixed costs= $600,000 Desired profit level = $150,000 Required sales units = (600,000 + 150,000)/3 = 250,000 unit Fixed costs increase = $60,000 (ex. addtl. advertising expenditure) Reqd. Sales units to maintain profits = 810,000/3 = 270,000 units
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Contemporary Engineering Economics, 4 th edition, © 2007 400 200 0 200 600 660 100,000 200,000 Increase in sales units required to maintain the same level of profit Effects of Fixed Costs Profit and Loss
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Contemporary Engineering Economics, 4 th edition, © 2007 Present Operation Variable Cost Increase Selling Price Decrease Unit Selling Price $10.00 $9.00 Unit variable Cost $7.50$8.25$7.50 Unit marginal contribution $2.50 (25%)$1.75 (17.5%)$1.50 (16.6%) Fixed Costs$150,000 Price Reduction and Increase in Variable Costs
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Contemporary Engineering Economics, 4 th edition, © 2007 Price Reductions and Increase in Variable Cost 10% reduction in sales price 0 150 60 86.7 100 PRESENT 10% increase in variable cost Profits (000’s) Losses (000’s)
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Contemporary Engineering Economics, 4 th edition, © 2007 Option 1: Adding overtime or Saturday operations: 36Q Option 2: Second- shift operation: $13,000 + 31.50Q Break-even volume: 36Q = $13,000 + 31.50Q Q = 3,000 units Example 8.4 Break-Even Analysis
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Contemporary Engineering Economics, 4 th edition, © 2007 Example 8.7 Profit-Maximization Problem
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Contemporary Engineering Economics, 4 th edition, © 2007 Net Profit Calculation as a Function of Production Volume
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Contemporary Engineering Economics, 4 th edition, © 2007 Weekly Profits as a Function of Time
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