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8/10/2019 Mathematics of Merchandising
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Harith Shaari, School of
Management & Business
Math of
Merchandising
44 - 1
Chapter 4
Harith Shaari, School of
Management & Business
Mathematicsof
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Management & Business
Math of
Merchandising
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Calculate
Learning Objectives
After completing this chapter, you will be able to:
thenet pr iceof an item after single or
multipletrade discounts
asingle discount ratethat is equivalent
to a series of multiple discounts
theamountof the cash discount for
which a payment qualifies
LO 2.
LO 1.
LO 3.
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the ordinarydating notationfor the
termsof paymentof an invoice
Understand
merchandise pricing problemsinvolvingmark upsand markdowns
Solve
LO 5.
LO 4.
Learning Objectives
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Middlemen
Manufacturer
Wholesaler
ConsumerRetailer
Distributor
Middlemen
Receivevarying
levels of
tradediscounts
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Trade Discount
Calculating
Formula
Amount ofdiscount=dL
Discount Rate L ist PriceD L
NetPrice =L(1d)
NetPrice=L istPriceAmountofDiscounti.e.
FormulaLO 1.
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Formula Amount ofdiscount=dL
TradeDiscount
The price of office equipment is $3000.The manufacturer offers a
30% trade discount.
Find the netprice and the trade discount amount.Formula NetPrice=L(1d)
=3000(1.3)
30%
=3000(.7)=$2100
= .3* $3000 = $900More
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TradeDiscount
An order for power tools has a$2100
netprice aftera 30% trade discount.
What is thelistprice?
Formula NetPrice=L(1d)
L = N/(1d)= 2100 /(1.3)= 2100/(.7)= $3000
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Management & Business
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TradeDiscount
For example 15% off first
then 10% off next
then a further 5% off next
Middlemen
Distributor
Note This does not meana TOTAL of 30% Discount!
This refers to the giving of further
discounts as incentives for more sales.
Wholesaler
LO 2.Series Discounts
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Management & Business
Math of
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The priceof office furniture is $20000.
The series discountsare 20%,10%,5%.
What is the netprice?
Formula N =L(1d)
L(1-d
1
) (1-d2
) (1-d3
)
= 20000(1-.2)(1-.10)(1-.05)
= 20000(.8)(.9)(.95)
= 20000(.6840) = $13680
N =
TradeDiscount
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Find thesinglediscount rate thatis
equivalent to theser ies 15%,10% and5%.
Apply the multiple
discountsto a
List priceof $100
N=L(1d)
(1-d1) (1-d2) (1-d3)
discounts 15% 10% 5%
(.85*= 100 .90* .95)
= 10072.67= $27.33
Calculate the
dollaramount
of the discount
27.33%
N = 100Step1
Step2
TradeDiscount
= 100 (.7268) = 72.68
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The priceof car parts is $20,000.
The ser ies discountsare 20%, 8%,2%.
What is the single equivalentdiscountrate?
= 100(.8)(.92)(.98)
= $72.13Step1
Step2
Calculate the dollaramountof the
discount
discount= 10072.13= 27.87
= 27.87 %
Apply the multiple
discountsto a
List priceof $100
TradeDiscount
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100
.98
.8
.92
72.13
Step 1
= 100 (.8)(.92)(.98)
Step 272.13
100
27.87
27.87
27.87 %
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CashDiscount
Invoice
Returned Goods
Freight
Sales Tax&
Trade Discounts
A discount given for theprompt payment
of an account.
No Cash
Discount
LO 3.
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May
Discount & Credit Periods
Discount period
Credit period
Period for buyer to
take advantageof
Discount Terms
Period for buyers to
pay invoices
Terms
Within 10 Days
Within 30 Days
CashDiscount
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Invoice
Dated May 3
Terms 2/10, n/30
Terms 2/10, n/30
2%discount I Fpaid in 10 daysI FNot then full amount
payable in 30 days
Paid on May 10th
Therefore, discountcan be claimed!
Terms
Net payment
LO 4.
CashDiscount
$500
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= $490
Formula N =L(1d)
= 500(1-.02)
= 500(.98)
N
CashDiscount
Invoice
$500
Terms 2/10, n/30
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Partial Payments
You owe $400. Your termswere 3/10, n/30.
Within 10 daysyou sent in a payment of $100.
How much is your new balance?
Amount credited L = Amount paid/(1-d)- or-
Amount credited = Payment/(1-d)
= $100/.97 100 - .03
= $103.09Amount credited
Step 1
Step 2
OldBalance =$400 - $103.09= $296.91 New Balance
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Mark
&Mark
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Math of
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Manufacturer
Wholesaler
Retailer
Distributor
CostThe price charged
to middlemen inThe Distribution
Chain
SellingPrice
The price charged
to Consumersby Retailers
Consumer
LO 5.
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The X Co. Inc
Gross Sales $ X
Less:Cost of Good Sold XGrossProfit X
(orMargin/MarkUp)
Less: Operating Expenses X
Net Profit (Income) $ X
Operating Expenses are the expenses the
company incurs in operating the business,
e.g. rent, wages and utilities
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$1200
Formula
Computer
$900 $300+
This
side up
SellingPrice (S) = Cost (C) + Markup (M)
=Margin available to
meetExpenses and
make aProfit
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33.33%
Mark
100%
SellingPrice (S) = Cost (C) + Markup (M)
If the MarkUpis to be 33%onCostthen
+133%
%MarkUpis
TheRateCost is 100%
TheBase
=
$ MarkUpis
The Portion
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You buySunday newspapers for$1.00.
You plan to sellthem for $1.50.
(A) What is your $ markup?
(B) and your percent markup on cost?
(A) SellingPrice $1.50
Less:Cost 1.00
MarkUp $ .50
(B) Percent markup on cost= DollarMarkup
Cost= $ .50
$1.00=50%
Mark
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Calculating the Sell ing Pr icewhen
you knowCost & Percent Mark UponCost
Mark
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Rays Appliances bought a sewing machine for $150.
To make the desired profit, he needs a 60% markup on Cost.
(A) What is Rays $ markup?
(B) What is his Selling price?
$
?
%/100
1.00SellingPrice
Less:Cost 150
MarkUp .60S = C + M
2?240 ?1.60
90
Mark
= $150+ .60($150)= $150 + $90
= $240
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Calculating the $MarkUpand Percent onCost
Mark
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?
Janes flower businesssellsfloral arrangementsfor $35. To make her desired profit, Jane needs a
40% markup on cost.
(A) What do the flower arrangements costJane?
(B) What is the dollar markup?
(A)
?
1.00
SellingPrice
Less:Cost
MarkUp .40
S = C + M$35 = C + .40(C)35
$35
1.40=
1.40C
1.40
?1.40
C= $25M = S - C
M = $35- $25
M = $10
(B)
10
Mark
25
$ %/100
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Calculating the MarkUpand Percent onSelling Price
Mark
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Management & Business
Math of
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SellingPrice (S) = Cost (C) + Markup (M)
%MarkUpis
TheRate
$ MarkUpis
The Portion
Cost is 100%
TheBase
Selling Price
Formula on Cost
Selling Priceis 100%
The Base
Becomes on Sell ing PriceFormula
Cost
Mark
f
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You buySunday newspapers for$2.00.You plan to sellthem for $2.50.(A) What is your $markup?
(B) and your percent markup on Sell ing Price?
(A) SellingPrice
(B) % markuponSell ing PriceDollarMarkup
Selling Price= 20%
$ %/100
1.00
= $ .50$2.50
.50MarkUp
.80
.20
Less:Cost
Mark
2.50
2.00
M th f
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Rays Appliances bought a sewing machine for $150.
To make the desired profit, a 60% markup on Sell ing
Price is needed. (A) What is the Selling price?
(B) What is the $ markup?
(A)
$
?
%/100
SellingPrice
Less:CostMarkUp .60
S = C + M= $150+ .60(S)
.40S = $150
2?
225
1.001.00-.60
.40.40
S = $150/.40 = $375
375
M = S - C
M = $375- $150
M = $225
(B)
Mark
150
M th f
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?
Janes flower businesssellsfloral arrangements for$35. To make her desired profit, Jane needs a 40%
markup on Sell ing Price.
(A) What do the flower arrangements costJane?
(B) What is the dollar markup?
(A)
?
SellingPrice
Less:Cost
MarkUp .40
S = C + M
$35 = C + .40($35)35 1.00
M = S - C
M = $35- $21
M = $14
(B)
14$35 = C + $14
$35 - $14 = C
$21 = C
?.6021
Mark
$ %/100
M th f
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Converting
Mark
Math of
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Converting
% Markupon Selling Price
to% MarkuponCost
% Markupon Cost
to% Markupon Selling Price
% markupon S
1 - % markupon S
Formula
.33
1 - .33=
.33
.67 = .50
% markupon C
1 + % markupon C
.50
1+ .50=
.50
1 .50= .33
Formula
Mark
33% MU on SP= ? % MUon Cost50% MUon Cost = ? % MUon S
Math of
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Mark
Math of
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Mark
Formula
%Markdown=$Markdown
Selling Price (original)
Sears marked downa $50tool set to$36.
What is (a) the $markdown and (b) the %markdown?
$Markdown =OldSNewS = $50-$36 =$14 Markdown
%Markdown = Markdown $14$50OldS
= = 28%
Math of
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*S(R)
Ski bindings bought for $57.75were marked up 45%of the Selling Price. When the bindings werediscontinued, they were marked down 40%.
What was the Sale Price afterthe 40% markdown?
?
$ %/100
SellingPrice
Less:Cost
MarkUp .45
1.00?57.75
S = Cost/(1 - .45)S= $57.75/ .55
= $105.00
S(R) = S*(1-d)= 105.00* .60= $63.00
?1.00
- .45
= .55$105.00
$ 47.25
.55
Less:Discount
SellingPrice $105.00 1.00
?
?$ 63.00
1.00
- .40
= .60
42.00 .40.60
Mark
* Reduced S
Math of
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This completes Chapter 4