Chapter 20: Q2RQ (page 1119)
What is a fixed cost? Give an example.
Fixed costs are the costs that persistent consistency in total amount.
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Question: Steve and Linda Hom live in Bartlesville, Oklahoma. Two years ago, they visited Thailand. Linda, a professional chef, was impressed with the cooking methods and the spices used in Thai food. Bartlesville does not have a Thai restaurant, and the Homs are contemplating opening one. Linda would supervise the cooking, and Steve would leave his current job to be the maître d’. The restaurant would serve dinner Tuesday through Saturday. Steve has noticed a restaurant for lease. The restaurant has seven tables, each of which can seat four. Tables can be moved together for a large party. Linda is planning on using each table twice each evening, and the restaurant will be open 50 weeks per year. The Homs have drawn up the following estimates:
Average revenue, including beverages and desserts \( 45 per meal Average cost of food 15 per meal Chef’s and dishwasher’s salaries 5,100 per month Rent (premises, equipment) 4,000 per month Cleaning (linen, premises) 800 per month Replacement of dishes, cutlery, glasses 300 per month Utilities, advertising, telephone 2,300 per month
Requirements
1. Compute the annual breakeven number of meals and sales revenue for the restaurant.
2. Compute the number of meals and the amount of sales revenue needed to earn operating income of \)75,600 for the year.
3. How many meals must the Homs serve each night to earn their target profit of $75,600?
4. What factors should the Homs consider before they make their decision as to whether to open the restaurant?
Question: Of the three approaches to calculate sales required to achieve the breakeven point, which one(s) calculate the required sales in units and which one(s) calculate the required sales in dollars?
A furniture manufacturer specializes in wood tables. The tables sell for \(100 per unit and incur \)40 per unit in variable costs. The company has $6,000 in fixed costs per month.
6. Prepare a contribution margin income statement for one month if the company sells 200 tables.
7. What is the total contribution margin for the month when the company sells 200 tables?
8. What is the unit contribution margin?
9. What is the contribution margin ratio?
The contribution margin income statement of Sugar Lips Donuts for August 2018 follows:
Sugar Lips sells three dozen plain donuts for every dozen custard-filled donuts. A dozen plain donuts sells for \(4.00, with total variable cost of \)1.80 per dozen. A dozen custard-filled donuts sells for \(8.00, with total variable cost of \)3.60 per dozen.
Requirements
1. Calculate the weighted-average contribution margin.
2. Determine Sugar Lips’s monthly breakeven point in dozens of plain donuts and custard-filled donuts. Prove your answer by preparing a summary contribution margin income statement at the breakeven level of sales. Show only two categories of costs: variable and fixed.
3. Compute Sugar Lips’s margin of safety in dollars for August 2018.
4. Compute the degree of operating leverage for Sugar Lips Donuts. Estimate the new operating income if total sales increase by 30%. (Round the degree of operating leverage to four decimal places and the final answer to the nearest dollar. Assume the sales mix remains unchanged.)
5. Prove your answer to Requirement 4 by preparing a contribution margin income statement with a 30% increase in total sales. (The sales mix remains unchanged.)
A chain of convenience stores has one manager per store who is paid a monthly salary. Relative to Store #36 located in Atlanta, Georgia, is the manager’s salary fixed or variable? Why?
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