Using Accounting Information To Make Managerial Decisions: Learning Objectives
Using Accounting Information To Make Managerial Decisions: Learning Objectives
Learning Objectives
8-1
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
8-2
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Unit 8.1
2. Avoidable costs are those that occur only when a particular decision
is made. Unavoidable costs are those that are unaffected by a
decision. For example, when deciding whether to continue to live in
your current apartment or to rent one closer to work, the additional
gas costs are avoidable but your car insurance is unavoidable.
3. A sunk cost is a cost that has occurred in the past; there is nothing
that can be done to affect the cost. So sunk costs are never relevant
to a future decision. However, sunk costs can be informative as they
illustrate the results of prior decisions.
Unit 8.2
8-3
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
4. The minimum price that a business can charge for a special order
without losing money on the order is the total relevant cost of the
special order.
Unit 8.3
Unit 8.4
8-4
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Unit 8.5
8-5
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
SOLUTIONS TO EXERCISES
Exercise 8-1
Exercise 8-2
c. Scrap = $0
Rework = ($100 - $10) per unit 500 units = $45,000
Sell to liquidation company = $80 per unit 500 units = $40,000
8-6
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Exercise 8-3
a.
Stat-Max Buy Tracker
Purchase price $912,000 $500,000
Programmer hours 80 hours 125 hours
Annual License fee $0 $10,000
Technical support 24-hour 8 a.m. – 5 p.m. CST
c. The out-of-pocket cost will be more than the relevant cost due to the
cost of purchasing the disk storage space.
Exercise 8-4
Exercise 8-5
Since Byways only has capacity to produce 2,000 units, it will have to
give up 3,000 units of its regular sales to complete the special order.
8-7
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Exercise 8-7
8-8
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Exercise 8-8
a. Direct Materials $2
Direct Labor 3
Variable Overhead 4
Relevant cost to make $9
b.
Make Buy
Total relevant cost to make $9 1,000 = $9,000
Total cost to buy $12 1,000 = $12,000
Contribution margin from released facilities (5,000)
Net cost to buy $7,000
Now it makes financial sense to buy the parts and use the facilities to
earn an additional $5,000 in contribution margin.
8-9
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Exercise 8-9
a.
Make Buy
Direct materials $3
Direct labor 4
Variable overhead 1
Relevant cost per unit to make $8
Cost to buy $12
Units needed 5,000 5,000
Total variable cost $40,000 $60,000
Additional fixed costs to make 28,000 -
Total cost $68,000 $60,000
8-10
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Exercise 8-10
Make Buy
Direct materials $5
Direct labor 12
Variable overhead 8
Avoidable fixed costs ($10 .4) 4
Relevant cost per unit to make $29
Cost to buy $32
Units needed 5,000 5,000
Total cost $145,000 $160,000
Contribution margin from released facilities (10,000)
Net cost $150,000
Do not accept offer. Financially, Kansas is $5,000 better off making the
part.
8-11
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Exercise 8-11
a.
Operate cafeteria
Meal revenue ($5/meal 5,000 meals 12 months) $300,000
Relevant cost to operate ($180,000 + $90,000 + $12,000) (282,000)
Relevant contribution from cafeteria operations $ 18,000
Outsourced cafeteria
Meal revenue ($.50/meal 5,000 meals 12 months) $30,000
Merit Bay should accept Best Ever’s offer since the net result is
higher under the outsourcing option.
b. Assuming the same relative costs, the food cost per meal is $3.00
($180,000 / 60,000 meals). Each worker costs $18,000 per year
($90,000 / 5 workers).
Operate cafeteria
Meal revenue ($5/meal 1,000 meals 12 months) $60,000
Food costs ($3/meal 1,000 meals 12 months) (36,000)
Worker salaries ($18,000 3) (54,000)
Fixed operating costs (12,000)
Net loss ($42,000)
Outsourced cafeteria
Meal revenue ($.50/meal 1,000 meals 12 months) $6,000
8-12
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Exercise 8-12
Exercise 8-13
A B C
Sales price per unit $ 3.00 $ 5.00 $16.00
Variable costs per unit 1.20 3.40 10.00
Contribution margin per unit 1.80 1.60 6.00
Labor hours per unit 1.20 .50 5.00
Contribution margin/labor hour $ 1.50 $ 3.20 $ 1.20
Preference ranking #2 #1 #3
8-13
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Exercise 8-14
a.
Banner Kites
s
Sales price per unit $12.00 $15.00
Variable costs per unit 9.00 14.00
Contribution margin per unit 3.00 1.00
Machine hours per unit 1.00 .25
Contribution margin/machine hour $ 3.00 $ 4.00
Preference #2 #1
8-14
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Exercise 8-15
a.
Chocolate Chip Sugar Oatmeal Raisin
Sales price $130 $110 $130
Variable cost 81 62 88
Contribution margin $ 49 $ 48 $ 42
Make and sell chocolate chip cookies since they have the highest
contribution margin per batch.
c.
Chocolate Chip Sugar Oatmeal Raisin
Contribution margin $ 49 $ 48 $ 42
÷ lbs. flour per batch ÷2 ÷2 ÷ 1.5
Contribution margin/lb. $24.50 $24.00 $28.00
Production order 2 3 1
Flour Remaining
50,000 lbs.
Oatmeal Raisin 10,000 batches × 1.5 lbs. = 15,000 lbs. used 35,000 lbs.
Chocolate Chip 12,000 batches × 2 lbs. = 24,000 lbs. used 11,000 lbs.
Sugar 5,500a batches × 2 lbs. = 11,000 lbs. used 0 lbs.
a
11,000 lbs. available ÷ 2 lbs. flour per batch
8-15
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Exercise 8-16
Exercise 8-17
Sales $6,600
Variable costs 3,000
Contribution margin 3,600
Avoidable fixed costs 1,680 ($4,200 40%)
Segment margin $1,920
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Chapter 8 – Using Accounting Information to Make Managerial Decisions
Exercise 8-18
a.
Weak Average Strong Total
Sales $125,00 $350,000 $500,00 $975,000
0 0
Variable expenses 50,00 200,000 300,00 550,000
0 0
Contribution margin 75,000 150,000 200,000 425,000
Direct expenses 30,00 80,000 110,00 220,000
0 0
Segment margin $45,00 $70,000 $90,00 205,000
0 0
Allocated expenses 150,000
Operating income $55,000
c. It appears that the total allocated expense is split evenly among the
divisions. If Weak is dropped, then $75,000 ($150,000 2) will be
allocated to Average, resulting in a $5,000 loss for the division as
currently reported.
8-17
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Exercise 8-19
a.
Sales revenue $200,000
Cost of goods sold
Variable $130,000
Fixed 32,000 162,000
Gross margin 38,000
Operating expenses
Commissions 10,000
Advertising 10,000
Corporate support 25,000 45,000
Operating income ($7,000)
b.
Sales revenue $200,000
Variable expenses
Cost of goods sold $130,000
Commissions 10,000 140,000
Contribution margin 60,000
Traceable fixed expenses
Cost of goods sold 16,000
Advertising 10,000 26,000
Segment margin $ 34,000
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Chapter 8 – Using Accounting Information to Make Managerial Decisions
SOLUTIONS TO PROBLEMS
Problem 8-20
Paper $0.15
Direct labor 0.05
Variable overhead 0.08
Total variable cost per box $0.28
Since the variable cost of $0.28 per box exceeds the sales price of
$0.25 per box that Andrea is willing to pay, Guilford should not accept
the order.
b. With the lighter, cheaper paper, the variable cost per box is $0.23.
Paper $0.10
Direct labor 0.05
Variable overhead 0.08
Total variable cost per box $0.23
Since the sales price of $0.25 per box that Andrea is willing to pay is
greater than the variable cost per box, Guilford should accept the
special order.
8-19
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
8-20
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Problem 8-21
a. The variable costs are the only relevant costs of the special order, so
those amounts need to be calculated first.
b.
Possibility that Nordic will become a regular customer – supports
request
Possibility that Nordic will expect a permanent price reduction –
does not support request
8-21
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
c.
Contribution from special order:
Sales $95.00
Direct materials (37.00)
Direct labor (16.00)
Variable overhead (10.50)
Variable selling and administrative costsa (1.45)
Contribution margin $30.05
Number of units 125,000
Contribution from special order $3,756,250
a
Total S&A costs 400,000 windows × $14 $5,600,000
Less fixed S&A costs 3,100,000
Total variable S&A costs 2,500,000
÷ 400,000 windows
$6.25 per window
Less costs not incurred on special order:
Commission $140 × .02 2.80
Shipping 2.00
Variable S&A cost per unit $1.45 per window
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Chapter 8 – Using Accounting Information to Make Managerial Decisions
the regular sales that cannot be made if the special order is filled.
The net result of $2,000,000 in additional contribution margin
suggests that Wayne should accept Ryster’s offer.
d.
Contribution from outsourcing windows
Sales $140.00
Purchase price (105.00)
Distribution ($140 × 0.02) (2.80)
Variable selling and administrative costs (3.45)
Contribution margin $28.75
Number of units 25,000
Contribution from outsourcing $718,750
8-23
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Problem 8-22
a.
Appropriate/ Correct/ Explanation
Inappropriate Incorrect
1. Appropriate Correct
2. Inappropriate Since the supervisor is
being transferred, the
salary amount will be
incurred regardless of
the decision. Therefore,
it is non-differential and
not relevant to the
decision.
3. Appropriatea Correct
4. Appropriate Incorrect
5. Appropriate Correct
6. Appropriate Incorrect
7. Appropriate Correct
8. Appropriate Correct
9. Appropriate Incorrect
a
If the company chooses not to outsource, there are two purchasing clerk salaries to pay – the one in the
assembly department and the one in the sales department. If the company chooses to outsource, there is
only one purchasing clerk salary to pay (in the sales department). Therefore, even though the assembly
purchasing clerk is being paid under both scenarios, the cost of the assembly position is relevant since
the net effect of ousourcing is a reduction in total purchasing clerk salaries from the elimination of the
assembly department position.
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Chapter 8 – Using Accounting Information to Make Managerial Decisions
b.
Reduction in assembly technicians $1,170,000
$32,500 36
Purchasing clerk transferred 19,000
Storage rental savings 18,000
1,500 sq. ft. $12/sq. ft
Reduced purchase orders 1,680
1,200 P.O.s $1.40/P.O.
Increased component cost (5,050,000)
125,000 units ($88 – $36 – $11.60)
Hire junior engineer (28,000)
Hire quality control inspector (26,000)
Storage costs for safety stock (16,250)
125,000 units $3.25/unit 4% increase
Net annual cost ($3,911,570)
8-25
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Problem 8-23
Therefore, the relevant cost to make the module is $50 per unit.
Compared to Longan’s proposed cost of $60, it is better for Benson to
make the unit.
8-26
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Problem 8-24
a.
Make Buy
Direct materials $12.00
Direct labor 6.00
Variable overhead 3.00
Salaries ($8 × 30%) 2.40
Relevant cost per unit to make $23.40
Cost to buy $32
Units needed 40,000 40,000
Total cost $936,000 1,280,000
b.
Make Buy
Direct materials $12
Direct labor 6
Variable overhead 3
Relevant cost per unit to make $21
Cost to buy $32
Units needed 40,000 40,000
Total cost $840,000 $1,280,000
Contribution margin from alternative use of
facilities (($11 - $7) 100,000 units) (400,000)
Net cost $880,000
8-27
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Problem 8-25
a.
Per unit Ratio
Revenues $18,000 $15.00 100.0%
Variable Costs
Cartons (6,000) (5.00) (33.3%)
Cushioning (600) (.50) (3.3%)
Tape, labels (1,500) (1.25) (8.4%)
Total variable costs (8,100) (6.75) (45.0%)
Contribution margin 9,900 $8.25 55.0
Fixed Costs
Salaried Labor (4,000)
Overhead (4,100)
Total fixed costs (8,100)
Income $1,800
On average, variable costs are $6.75 per unit and the selling price is
$15 per unit. A 20% discount results in an average price of $12,
which is high enough to cover variable costs. Labor is not included
as a variable cost because the workers are paid a fixed salary.
Unless the proportions of the other material costs to sales price vary
widely, it is unlikely that Roger will lose money.
8-28
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Problem 8-26
b.
Dumbbell Rack Weight Bench
Sales price $50 $61
Variable cost 27 29
Contribution margin $23 $32
÷ MH/unit .5 .8
Contribution margin/MH $46 $40
Production order 1 2
MH Remaining
6,000 MH
Dumbbell Rack 4,000 racks × .5 MH = 2,000 MH used 4,000 MH
Weight Bench 5,000a benches × .8 MH = 4,000 MH used 0 MH
a
4,000 MH available ÷ .8 MH per bench
MH Remaining
6,000 MH
Weight Bench 5,800 benches × .8 MH = 4,640 MH used 1,360 MH
Dumbbell rack 2,720 a racks ×.5 MH = 1,360 MH used 0 MH
a
1,360 MH available ÷ .5 MH per bench
8-29
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
MH Remaining
6,000 MH
Dumbbell Rack 2,000 racks ×.5 MH = 1,000 MH used 5,000 MH
Weight Bench 6,250a benches × .8 MH = 5,000 MH used 0 MH
a
5,000 MH available ÷ .8 MH per bench
CM = (2,000 racks × $29) + (6,250 benches × $32) = $258,000
f. Raising the price of the weight bench results in the greatest total
contribution margin. Because the company is unable to meet so
much demand, Sarah should consider purchasing another machine to
increase capacity.
8-30
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Problem 8-27
a.
Hours per Hours
Demand session needed
Math 120 .75 90
Writing 210 1.50 315
Science 100 .50 50
Total 455
Carie cannot satisfy current demand. She only has 350 hours
available to meet total demand of 455 hours.
b.
Math Writing Science
Sales price per session $25.00 $30.00 $15.00
Variable costs per session 13.00 24.00 8.00
Contribution margin per session 12.00 6.00 7.00
Labor hours per session .75 .50
1.50
Contribution margin/labor hour $16.00 $4.00 $14.00
Preference ranking #1 #3 #2
c.
Sessions Contributio
offered n per Total
session
Math 120 $12 $1,440
Science 100 $7 700
Writing 140 $6 840
$2,980
8-31
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
8-32
Chapter 8 – Using Accounting Information to Make Managerial Decisions
d.
Students Sessions Hours per Hours
Demand per session needed session needed
Math 120 2 60 .75 45.0
Writing 210 1 210 1.50 315.0
Science 100 4 25 .50 12.5
Total 372.5
Carie still does not have enough capacity to cover all sessions.
Writing still generates the lowest contribution margin per labor hour,
so hours will be allocated first to Science and then Math.
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Chapter 8 – Using Accounting Information to Make Managerial Decisions
Problem 8-28
Option 1:
Per unit
Sales revenue $688,000 $86.00
Variable expenses
Direct materials $136,000 17.00
Direct labor 150,000 18.75
Manufacturing overhead 56,000 7.00
Selling & administrative 80,000 10.00
Total variable expenses 422,000 52.75
Contribution margin 266,000 $33.25
Fixed expenses 106,000
Operating income $160,000
Option 2:
Regular Outsourced Total
Sales revenue $86.00 $86.00
Purchase price $68.00
Direct materials 17.00
Direct labor 18.75
Manufacturing overhead 7.00
Selling & administrative 10.00 10.00
Total variable cost 52.75 78.00
Contribution margin 33.25 8.00
Units sold 8,000 4,000
Total contribution margin $266,000 $32,000 $298,000
Fixed expenses 106,000
Operating income $192,000
8-35
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Option 3:
Tackle boxes Skateboards Total
Sales revenue $86.00 $45.00
Variable production costs
Purchase price $68.00 22.50
Selling & administrative 10.00 10.00
Total variable cost 78.00 32.50
Contribution margin $8.00 12.50
Units sold 9,000 17,500
Total contribution margin $72,000 $218,750 $290,750
Fixed expenses 106,000
Operating income $184,750
Recap:
Option 1 $160,000
Option 2 $192,000
Option 3 $184,750
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Chapter 8 – Using Accounting Information to Make Managerial Decisions
Problem 8-29
a.
A B C Total
Sales revenue $2,20 $1,400 $1,800 $5,400
0
Variable expenses 1,40 800 1,080 3,280
0
Contribution margin 800 600 720 2,120
Less direct fixed expenses
Advertising 630 525 520 1,675
Depreciation 15 10 20 45
Segment margin $ 155 $ 65 $ 180 400
Less common fixed expenses 275
Operating profit $ 125
8-37
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Problem 8-30
No, the Fenner Road store should not be closed. Closing the store
will result in monthly operating income of $3,200, which is lower than
the current monthly operating income. The reduced sales at Maple
Avenue and the Fenner Road direct fixed expenses that remain after
closing the store are greater than the current loss reported by the
Fenner Road store.
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Chapter 8 – Using Accounting Information to Make Managerial Decisions
d.
Sales at Remaining Total Fenner
Variable Cost Sales Road Sales
Sales $60,000 $60,000 $120,000
Variable expenses 60,000 24,000 84,000
Contribution margin $0 $36,000 $ 36,000
8-39
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
Case 8-31
a.
Pants Jerseys Jackets
Sales price $12.00 $14.80 $125.00
Direct materials $ 4.47 $ 6.85 $ 44.72
Direct labor 2.40 1.92 14.40
Variable overhead 1.32 1.05 7.92
Commission .60 .74 6.25
Shipping .40 .40 .40
Total variable cost $ 9.19 $10.96 $ 73.69
Contribution margin $ 2.81 $ 3.84 $ 51.31
b.
Pants Jerseys Jackets
Contribution margin $ 2.81 $ 3.84 $51.31
÷ Direct labor hours per unit ÷ .25 ÷ .20 ÷ 1.50
Contribution margin per DLH $11.24 $19.20 $34.21
d.
Pants 200,000 pants × 0.25 DLH/pant = 50,000 DLH
Jerseys 70,000 jerseys × 0.20 DLH/jersey = 14,000 DLH
Jackets 18,000 jackets × 1.5 DLH/jacket = 27,000 DLH
91,000 DLH
8-40
Chapter 8 – Using Accounting Information to Make Managerial Decisions
If jerseys are made instead of pants, C&C will make 2,800 fewer
pants (700 DLH ÷ 0.25 DLH/pant). This will result in a loss of $7,868
in contribution margin (2,800 pants × $2.81 CM/pant), for a net
increase in contribution margin of $5,572 ($13,440 - $7,868).
If jerseys are made instead of jackets, C&C will make 467 fewer
jackets (700 DLH ÷ 1.5 DLH/jacket). This will result in a loss of
$23,962 in contribution margin (467 jackets × $51.31 CM/jacket), for
a net decrease in contribution margin of $10,522 ($13,440 - $23,962).
8-41
Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
SOLUTIONS TO CASES
Case 8-32
b.
Option 1 Option 2 Option 3
a
Registration fee revenue $ 8,925 $ 0 $ 76,440
Expenses
Meals 1,875 16,250
Conference materials 675 5,850
Direct mail advertising 4,500 4,500 6,000
Meeting room rental 3,500 3,500
Cancellation fee 10,000
Guest room guarantee fee 5,000
Equipment rental 500 500
Speaker fees:
Newton 600 600
Smith 2,000 2,000
Townsley 4,000 1,000 4,000
Speaker travel:
Newton 200 200
Smith 1,200 800 1,300
Townsley 1,000
Compton 200 200
Total expenses 25,250 16,300 40,400
Operating income ($16,325) ($16,300) $36,040
a
Registration fee income for option 3
(6,500 mailings 2% 90% $595) + (6,500 mailings 2% 10% $525)
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Chapter 8 – Using Accounting Information to Make Managerial Decisions
c.
Option 1 Option 2 Option 3
Net Income ($16,325) ($16,300) $36,040
Add back unavoidable costs
Direct mail advertising 4,500 4,500 4,500
Townsley speaker fees 1,000 1,000 1,000
Relevant income (loss) ($10,825) ($10,800) $41,540
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Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
8-44
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Case 8-33
Household
Varia Total
ble Contribu contribu
Sal costs tion Units tion
a
es margin sold margin
$18 120,0 $240,00
$16 $2 00 0
$20 100,0 $400,00
$16 $4 00 0
$21 90,00 $450,00
$16 $5 0 0
$22 80,00 $480,00
$16 $6 0 0
$23 50,00 $350,00
$16 $7 0 0
a
Raw materials + Direct labor + Variable overhead + Variable selling and administrative = $7 + 4 +
1 + 4= $16
Commercial
Total
Sale Variable Contributio Units contribution
s costsa n margin sold margin
$25 $21 $4 175,000 $700,000
$27 $21 $6 140,000 $840,000
$30 $21 $9 100,000 $900,000
$32 $21 $11 55,000 $605,000
$35 $21 $14 35,000 $490,000
a
Raw materials + Direct labor + Variable overhead + Variable selling and administrative = $8 + 4 +
2 + 7= $21
b.
Household Commercial Total
Contribution margin $480,000 $900,000 $1,380,000
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Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
8-46
Chapter 8 – Using Accounting Information to Make Managerial Decisions
(and direct fixed costs) or look for ways to use capacity to make a
different product.
f.
Household Commercial Total
Units sold 50,000 35,000
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Chapter 8 – Using Accounting Information to Make Managerial Decisions
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Solutions for Davis & Davis, Managerial Accounting, 2nd ed.
8-50
Chapter 8 – Using Accounting Information to Make Managerial Decisions
Case 8-34
8-51