cost-volume-profit analysis. identify how changes in volume affect costs
TRANSCRIPT
Minutes Talked
To
tal L
on
g D
ista
nce
Tel
eph
on
e B
illTotal variable costs change
when activity changes.
Your total long distancetelephone bill is basedon how many minutes
you talk.
Minutes Talked
Per
Min
ute
Tel
eph
on
e C
har
ge
Variable costs per unit do not changeas activity increases.
The cost per long distance
minute talked is constant.
For example, 10cents per minute.
Consider Grand Canyon Railway. Assume that breakfast costs Grand Canyon
Railway $3 per person. If the railroad carries 2,000 passengers, it
will spend $6,000 for breakfast services.
0 1 2 3 4 5
$24 –
$18 –
$12 –
$6 –
– – ––
Volume(Thousands of passengers)
Tot
al V
aria
ble
C
osts
(th
ousa
nd
s)
Number of Local Calls
Mo
nth
ly B
asic
T
elep
ho
ne
Bill
Total fixed costs remain unchangedwhen activity changes.
Your monthly basic
telephone bill probably
does not change when
you make more local calls.
Contain fixed portion that is incurred even when facility is unused & variable portion that increases with usage.
Example: monthly electric utility charge◦ Fixed service fee◦ Variable charge per kilowatt hour used
Total mixed cost
Variable
Utility Charge
Activity (Kilowatt Hours)
To
tal
Uti
lity
Co
st
Fixed Monthly
Utility Charge
…is a band of volume in which a specific relationship exists between cost and volume.
Outside the relevant range, the cost either increases or decreases.
A fixed cost is fixed only within a given relevant range and a given time span.
Fix
ed
Cos
ts
Volume in Units
$160,000 –
$120,000 –
$80,000 –
$40,000
0 5,000 10,000 15,000 20,000 25,000
– – –
Relevant Range
Expenses can be classified as either variable or fixed.
CVP relationships are linear over a wide range of production and sales.
Sales prices, unit variable cost, and total fixed expenses will not vary within the relevant range.
Volume is the only cost driver. The relevant range of volume is specified. Inventory levels will be unchanged. The sales mix remains unchanged during
the period.
Luis and Tom manufacture a device that allows users to take a closer look at icebergs from a ship.
The usual price for the device is $100. Variable costs are $70 per unit. They receive a proposal from a company in
Newfoundland to sell 20,000 units at a price of $85.
There is sufficient capacity to produce the order.
How do we analyze this situation? $85 – $70 = $15 contribution margin. $15 × 20,000 units = $300,000 (total
increase in contribution margin)
Sales (20,000 x $85)
$1,700,000Variable costs (20,000 x $70)
(1,400,000)Contribution margin
$300,000
The unique sales level at which a company earns neither a profit nor incurs a loss.
Sales – Variable Costs – Fixed Costs = 0
Volume in Units
Co
sts
and
Rev
enu
ein
Do
llar
s Total fixed costs
Plot total fixed costs on the vertical axis.
Total costs
Draw the total cost line with a slopeequal to the unit variable cost.
Volume in Units
Co
sts
and
Rev
enu
ein
Do
llar
s Total fixed costsTotal costs
SalesStarting at the origin, draw the sales line with a slope equal to the unit sales price.
Break-even Point
Suppose that our business would be content with operating income of _________________.
How many units must be sold?
Suppose that the sales price per device is _____ rather than ____
What is the revised breakeven sales in units?
Suppose that fixed costs increased by $30,000.
What are the new fixed costs? What is the new breakeven point?
Atlanta Braves
$-$1,000$2,000$3,000$4,000$5,000$6,000$7,000
- 50 100 150 200 250
(in thousands)
(in
th
ou
sa
nd
s)
Revenues
Total Expense
Fixed expenseBreak even point
Profit
Loss
Break even in units = 1,200,000Break even in $ = 1,200,000 x 24 = $28,800,000
Unit contribution margin is replaced with contribution margin for a composite unit.
A composite unit is composed of specific numbers of each product in proportion to the product sales mix.
Sales mix is the ratio of the volumes of the various products.
The resulting break-even formulafor composite unit sales is:
Break-even pointin composite units
Fixed costsContribution marginper composite unit
=
Windows Doors
Selling Price $200 $500 Variable Cost 125 350 Unit Contribution 75$ 150$ Sales Mix Ratio 4 1
A company sells windows and doors. They sell 4 windows for every door.
Step 1: Compute contribution margin per composite unit.
Windows Doors Selling Price $200 $500 Variable Cost 125 350 Unit Contribution 75$ 150$ Sales Mix Ratio Composite C/M
Break-even pointin composite units
Fixed costsContribution marginper composite unit
=
Step 2: Compute break-even point in composite units.
Break-even pointin composite units
Fixed costsContribution marginper composite unit
=
Break-even pointin composite units
$900,000
$450 per composite unit
=
Step 2: Compute break-even point in composite units.
Break-even pointin composite units
= 2,000 composite units
Sales CompositeProduct Mix Units UnitsWindow 4 × 2,000 = 8,000
Door 1 × 2,000 = 2,000
Step 3: Determine the number of windows and doors that must be sold to break even.