determining the cost behavior. After reviewing the data, complete requirements (1) and (2) that follow. Total Total Total Machine Units Lumber Utilities Depreciation Produced Cost Cost Cost 13,000 shelves $130,000 $15,950 $120,000 26,000 shelves 260,000 30,900 120,000 52,000 shelves 520,000 60,800 120,000 65,000 shelves 650,000 75,750 120,000 1. Determine whether the costs in the table are variable, fixed, mixed, or none of these. Lumber Variable Cost Utilities Mixed Cost Depreciation Fixed Cost 2. For each cost, determine the fixed portion of the cost, and the per-unit variable cost. If there is no amount or an amount is zero, enter "O". Recall that, for N = Number of Units Produced, Total Costs - (Variable Cost Per Unit X N) + Fixed Cost. Complete the following table with your answers. Round variable portion of cost (per unit) answers to two decimal places. Fixed Portion Variable Portion of Cost (per unit) Cost of Cost Lumber Utilities Depreciation Total Cost January Units Produced 4,360 units 275 $65,600 February 6,250 March 1,000 15,000 April 103,750 6,775 1,750 May 32,500 48,000 June 3,015 1. From the data previously provided, help Biblio Files Company estimate the fixed and variable portions of its total costs using the high-low method. Recall that Total Costs - (Variable Cost Per Unit x Number of Units Produced) + Fixed Cost. Complete the following table. Total Fixed Cost Variable Cost per Unit 2. With your Total Fixed Cost and Variable Cost per Unit from the high-low method, compute the total cost for the following values of N (Number of Units Produced). Number of Units Produced 3,500 Total Cost 4,360 6,775 3. Why does the total cost computed for 4,360 units not match the data for January? 3. Why does the total cost computed for 4,360 units not match the data for January? a. The high-low method is accurate only for months in which production is at full capacity b. The high-low method only gives accurate data when fixed costs are zero c. The high-low method gives a formula for the estimated total cost and may not match levels of production other than the highest and lowest d. The high-low method gives accurate data only for levels of production outside the relevant range. Contribution Margin Review the contribution margin income statements for Cover-to-Cover Company and Biblio Files Company on their respective Income Statements. Complete the following table from the data provided on the income statements. Each company sold 78,800 units during the year. Cover-to-Cover Biblio Files Company Company Contribution margin ratio (percent) % Unit contribution margin Break-even sales (units) Break-even sales (dollars) %