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8/10/2019 KWK 4th Append D(1)
1/6
D-l6 aBpendix
D Time Value of
Money
Lfsing
Financsn'E *ai*uEat*=r=
Use
a financial calculator
to solve
time
value of
money
problems.
lllustration D-25
Financial
calculator
keys
lllustration
D-26
Calculator solution
for
present
value of a single
sum
Business
professionals,
once
they have mastered
the
underlying concepts
in
sections
1
and 2,
often
use
a
financial
calculator
to
solve
time
value
of
money
problems.
In
many
cases,
they must
use calculators
if interest rates or time
periods
do not
correspond with
the information
provided
in
the
compound
interest tables.
To
use
financial
calculators,
you
enter the
time
value
of
money variables
into
the calculator. Illustration
D-25 shows
the five
most common
keys used to solve
time value of money
problems.l
where:
N
:
number
of
periods
I
:
interest rate
per period
(some
calculators
use VYR or
i)
PV
:
present
value
(occurs
at the
beginning
of the first
period)
PMT
:
payment
(all
payments
are
equal,
and
none
are skipped)
FV
:
future value
(occurs
at the
end
of
the
last
period)
In
solving time
value of money
problems
in
this appendix,
you
will
gener-
ally
be
given three
of four
variables
and
will
have
to
solve
for
the
remaining vari-
able. The
fifth
key
(the
key not
used)
is
given
a
value of zero
to
ensure
that this
variable is not used in the computation.
Present
Value
of a Single
Sum
To
illustrate how
to solve a
present
value
problem
using a
financial
calculatoL
assume
that
you
want to know the
present value of
$84,253
to be
received
in
five
years,
diicounted at llo/o
compounded
annually.
Illustration
D-26
depicts
this
problem.
2On
many calculators,
these keys
are
actual
buttons
on the
face
of the
calculator;
on
others,
they
appear
on the display after the user
accesses
a
present
value menu.
lnputs: 5 11
?
0
84,253
ffiffiffiffiry
nswer:
*50,000
ryryryffiltre
8/10/2019 KWK 4th Append D(1)
2/6
Present
Value
of
an
AnnuitY
D'17
Illustration
D-26
shows
you
the
information
(inputs)
to enter
into
the
calculator:
N
:
5,
I
:
il,
pMT
:
b,
and
FV
:
84,253.
You
then
press PV
for
the answer:
-5so,ooo.
As
indicated,
the
PMT
key
was
given
a
value
of
zero
because
a
series
of
pal,.nnents
did
not
occur
in
this
probiem'
pg-tJs
A*\$s
nfififr*6"is
The
use
of
plus
and
minus
signs
in
time
value
of
money
problems
with
a
finan-
cial
calculaior
can
be
confusirg.
Most
financial
calculators
are
programmed
so
that
the
positive
and
negative
cash
flows
in
any
problem
offset
each
other'
In
tfr"
pr"r"rrt
value
probl"ir
ubou",
we
identified
the
$84,253
future
value
initial
irr,restment
as
a
positive
(inflow); the
answer
-$50,000
was
shown
as
a negative
amount,
reflecting
a cash
outflow.
If the
84,253
were entered
as
a negative,
then
the
final
answer
would
have
been
reported
as
a
positive
50,000.
Hopefull5,,thesignconventionwillnotcauseconfusion.Ifyouunderstand
what
is
required
in
a-problem,
you should
be
able
to
interpret
a
positive
or
neg-
ative
amount
in
determining
the
solution
to
a
problem'
ffisMp##ruffiBruffi
pffiffism#s
In
the
problem
above,
we assumed
that
compounding
occurs
once
a
year'
Some
financial
calculators
iru.r"
u
default
setting,
which
assumes
that
compounding
occurs
12
times
ayear.
You
must
determine
what
default
period
has
been
pro-
grammed
into
your calculator
and
change
it
as
necessary
to
arrive
at
the
proper
compounding
Period.
RSq.iNWEruffi
Most
financial
calculators
store
and
calculate
using
12
decimal
places'
As
a
result,
because
.o*forrnd
interest
tables
generally
have
factors
only
up
to
five
a".i*.f
places,
a
,tig1tt
difference
in
the
final
answer
can
result'
In
most
time
value
of
money
proil.-r,
the
final
answer
will
not
include
more
than
two
decimal
places.
Fresent
Value
of
an
Annuity
To
illustrate
how
to
solve
a
present
value
of
an
annuify
problem using
a finan-
cial
calculator,
assume
that
ytu are
asked
to determine
the
present
value
of
rental
receipts
of
$6,000
each
to
be
received
at
the
end
of
each
of
the
next
five
vears,
*h"n
dir"ounted
at
1'2o/o,
as
pictured
in
IllustrationD-27'
lllustration
D-27
Calculator
solution
for
present value
of
an
annuiiY
In
this
case,
You
enter
N
:
5,
I
:
12,
PMT
:
to
arrive
at the
answer
of
-$21,628'66'
6,000,
FV
:
0,
and
then
Press
PV
8/10/2019 KWK 4th Append D(1)
3/6
D-l8
;ippsr'ldix
#
Tirne
Value
of
Money
lllustration
D.28
Calculator solution
for
auto
loan
payments
lllustration
D.29
Calculator
solution
for
mortgage
amount
Useful
Applications
cf
the
Financial
Calculat
8/10/2019 KWK 4th Append D(1)
4/6
D-20 mppenc:x
*
Tirne
Value of
Money
Bnief
Fxercises
(Use
tables to solve
exercises BED-I to
BED-25.)
Compute
the
future
value
BED-I
Randy
Owen
invested
$8,000
at
5o/o
annual
interest,
and left the money
invested
of a single amounr.
without
withdrawing any of the interest
for 12
years. At the
end of the
12
years,
Randy
($0
2),
AP
withdrew
the accumulated amount of
money.
(a)
What amount
did
Randy
withdraw,
assuming
the investment earns simple
interest?
(b)
What amount
did
Randy
withdraw
assuming
the investment
earns
interest compounded
annuaily?
Use
future
value tables.
BED-?
For each of the following
cases, indicate
(a)
to
what
interest rate
columns and
iSil
:,3), {}
(b)
to
what number of
periods you
would
refer
in
looking
up the
future value
factor.
(1)
In
Table
1
(future
value
of 1):
Annual
Number
of
Rate
Years Invested
Compounded
Case
A 6a/o
Case
B 8o/o
(2)
In
Table
2
(future
vaiue
of
an annuity
of 1):
Annual
Number
of
Rate
Years Invested
Compounded
Case
A 5o/o
Case
B 60/o
3
Annually
4
Semiannually
8
Annually
6
Semiannuallv
Computethefuturevalue
BED-3
,,Joyce
Company
signed a
iease
for an
office
building
for a
period
of
12
years.
of a single
amount.
.. U-n-derthe
lease agreement, a
security
deposit of
$9,200
is made.
The deposit
will be re-
(S02),SP
'-'--turned
at
the expiration of the
lease with interest
compounded
at
4o/o
per
year. What
amount
will
Joyce receive at the
time
the lease expires?
Compute
the
future
value
BED-4., Bates
Company
issued
$1,000,000,
l0-year bonds
and agreed
to
make
annual
sink-
of an
annuity.
-.
ingfund
deposits of
$78,000.
The deposits are made
at
the
end
of each
year
into
an account
{S0
3), 4p
payrng
5o/o
annual
interest. What amount
will
be
in the sinking
fund
at the end
of 10
years?
Compute
the
future
talue
BED-5
,.
Frank and Maureen Fantazzi invested
$6,000
in
a
savings
account paying
4o/o
of asingleqmountandof
annual interest
when
their
daughte4
Angela,
was born.
They also
deposited
$1,000
on
an
annuity.
each
of
her
birthdays
until she
was 18
(including
her 18th
birthday).
How
much
was in
is{j
l.:),
AP
the savings
account on her 18th
birthday
(after
the
last
deposit)?
Cornpute
the
future
value
tsED-6
Hugh Curtin borrowed
$34,000
on July
1,
2012. This
amount
plus
accrued
in-
of a single
amount.
.
terest
at 9o/o compounded
annually is to
be repaid on
July
l,2AI7.
How
much
will
Hugh
iSO
Z}, ilF
have to repay on July
1,2017?
(Jse
present
value
tables.
BED'? For each of
the
following
cases, indicate
(a)
to
what
interest rate
columns
and
isg
5
:l) if
(b)
to
what number of
periods you
would refer
in looking
up the
discount
rate.
(1)
in
Table 3
(present
value of 1):
Annual
Number
of
Discounts
Rate
Years
Involved
Per Year
CaseA
1.2o/o
6
AnnuallY
Case
B 10a/o
11
AnnuallY
CaseC 60/o
9
SemiannuallY
(2)
In
Table
4
(present
value of an annuity
of
1):
Annual
Nurnber of
Number
of
Frequency
of
Rate Years
Involved
Pa)rrnents
Involved
Payments
Case
A L2o/o
20
20
AnnuallY
CaseB 10o/o
5
5
AnnuallY
CaseC 8a/o
4
8
Semiannually
8/10/2019 KWK 4th Append D(1)
5/6
Brief
Exercises
D-21
BED-8(a)Whatisthepresentvalueof$23,000duegperiodsfromnowdiscountedatDeterminepresentvalue
sB
5,6),
AF
'
.-
l0o/o?
(b)
What
is
the
present
ytl":-:i
$28'000
to
be
received
at
the
end
of
each
of
BED-e
J::::rl";::::::*T:y.:"investment
that
w*i
return
a
lump
sum
of
compute
the
present
tatue
of
five
years
f.;;;*.
What
amo'r,f;fua
Chaffee
C"'t;;;;;v
fo'
this
invest-
a
singte
amount
investment'
i$0
5i
&r
ffi;:"ffi;'::ffi
earns roo/o::
u,
investment
that
will
return g480,000
computethepresentuarueof
eight
years
t
orrr
rro*-w#t
is
the
^*o*rrr,
rifi
should
i.rrr".r
rro*io
".r-t-,rtir
rate
of
a
singreamount
investmen,
{S"l
5;.
&F
return?
BED_I1
Arthur
company
is
consjdering
investing
in
an
annuity
contract
that-will,re-
compute
the
present
value
of
turn
945,000
"rr"iroliii'eend
of
"""h
v;;;;;;'i"t;;;t''
wh""";;;;
sno"ld
Arthur
an
annuitv
iwestmen'
company
pay
for;i:
ffiJi;;;
";;;
5o/o
reiurn?
_,
o*o
ge0,000
at
th
(5i
6;
AF'
l
BED-12
'Kaehler
Enterprises
":y,
q7,,:'
an
investment
that
pays
back
$90,000
at
the
Compute
the
present
tlalue
,
dnrl_of
each
of
the
next
6
years.
what
is
,h"
;;;*
Kaehrer
u*"tinr"r"i"*li"a
,o
"u*
of
an
annuitv
i'Nestment'
is{l
-il,
sr
H|T:|]ffioad
co.
i1
about
to
issue
g300,000 of
l0-vear
bonds
pavin
s
?
s%
compute
the
present
ratue
interest
rate,
with
i*"r".t
payable
,"-itrr,t"^*y'
The
discount
tli"
i"t
t""h^securities
is
of
bonds'
8o/o.
Howmuch
can
Hanna
expect
,"
."""*ll"i
i-t'"-'^f"
of
these
bonds?
f't
I' i
l;'
&r'
BED-14
Assume
the
same
information
as
BED-13
except
that
the discount
rate.was
computethepresentvalueof
l0olo
instead
of
ga/o.In
this
case,
how
*rr"h
"r'
Hanna
expect
t"
t"t"l*
from
the
sale
of
'u,Jfi
,,
no
ffi:"T;mas
raco
companv
o':i"":
i,J^'--in'i,::::,xil;J:,5;:fi;:l1:Ti$:?
"iT'l:::":-presentvatue
(paid annually)
lrofr-;
"rr.a-o'*.i
^,
a
time
*f'"t
'f'"
discount
tut.-
it-Sq"'
frhat
ls
the
pres-
of
a
note'
ent
value
of
the
n;;;"tei"ed
bY
Tomas?
.sfb_re
Gleason
Enterprises
issued
9,o/o,
g-year,$2,600,000
par
value
bonds
that
pay
in-
compute
the
present
value
of
idierse*lu"""utiv
o"
o"tober
1
and
o#ii
i;"-;;i;
"'"'d";"Jap-r
t'2012'
""q:'"
bonds'
i,.'"a
on
that
d#
;i";;;;
;ryi'J*#tfii#:f*#"t
i'
zot'z'
is
roo/o
{sG
}'
E
?)'
AF
,H::;-;;::::"T,:r;.*"d
is
contempratingpurchasing
a
tire
rerreadin
E
comnltl
t\orelfltvatue
of
m'aihine
for
$18,000.
After
estimat,*
.".,,
"'J,".,"''",,
M"'ffi;j:"?'.;;;;;'h
fffi
a machine
for
purposes
of
from
rhe
."tr"uai.,g
machine
of
$3,30i ;;;;;li;
io'
a
v'*''
ruruti
iJp"'
to
earn
i
::y;
makins
a
purchase
decision'
of
t0
percent.";H';;;;il""ir.
wr'.it;;;;;;;#"alue
of
th'
retreading
operation?
ist
l'
7'
A'r
Should
fUutt
p"tt:ft*e
the
retreading
machine?
BED_'g
Fraziercompany
issues
an.golo,
5-year
mortga,ge
note
on
January
r,
-2orz,
to
compute
the
present
value
of
obtain
financing
for
new
equipm".rr.
r-una-iJ;;;J"t
"9rlilta
for
the
note'
The
terms
anote'
nrovide
for
semiannual
installmen,
o"#l*
l"rtfou,,to'
wr'^t
*"t"
the
cash
proceeds
l$3
8)
eF
i;;;;^ft""'
the
issuance
of
the
note?
:
BED-19
Leffler
company
_is
considering
purchasing
equ]prnent.
The
equipment
will
compute
the
maximum
price
,
pioduce
the
following
"..h
no*r,
""u"'i:-$#;'*ff;;
fi9'ffi;
-JY;-*:'
$s0'000'
to
pav
for
a
machine'
Leffler
requires
u
*iiri*rr*
rate
of
t;'-;;1-0
il"'
wt'''utit
Jrt"
*t-i"tum
price
Leffler
($$
[,
ii
AF
J"Ja
pty
fot
this
equipment?
-:-.^
o 1^ Aoo
qr
rhe compute
the
interest
rate
on
BgnliO If
Colleen
Mooney
invest-s.$4'172'65
low'and
she-will
receive $10'000
at
the
computetheinter
end*of-l5
y".rr,'*fruiunnual
rate
of
ini"t"'t
will
Colleen
";;;
tttt
lt"""tt*.'l? (Hint:
a
single
amoun,
is8
5)
&fi
use
Table
3')
r
'1-^
^--^*"'itw
of
investing $25'490
now'
The
compute
the
number
of
.l?3,j"".Y,f:#f,ffi.:E:ffi*:l::x5Ti#l'.sjffiii;1ffi;i?1";J;'Jd;:
}inJil."i"
'',-ngle
amount.
How
many
y"^.r;Jw;yre
wait
r"
*-."i""
Isot,ool?
(Hint: use
Table
3')
{si:5;'
AF"
B]ED-22JoanneQuickmadeaninve.stmentof$g,128.55.Fromthisinvestment,shewillComputetheinterestrateon
receive
g1,000
.rrrarv
for
the
.r"*t
i0
y"..s
starting
on"
d;;il*
"o*'
what
rate
of
anannuity'
interest
*il
ioi""Jt
ii*t*t"t
b"
";"i;;;"t
i"tiiai"'
use
Table
4')
(s
Ei'
Art
BED-23
?attv
Schleis
invests
F:iii,i'3"H:
:::'ilTi"i,"1,
T;ttl1"il$
'-Ti:tr*H
""#:f'"";n"ffif;'
inning
one
Year
from
now'
Pltl{
Yl
How
manv
t""'-tur
pavrnents
of
$1'00il;ift;6;;
"*tt
tiii''
use
Table
4')
igt
5;
&tt.
8/10/2019 KWK 4th Append D(1)
6/6
D'22 appendix
D
Time
Value
of MoneY
Compute
the
present
value
of
a machine
for
purposes of
making
a
purchase decision.
isc
t], AP
Compute
the
maximum
price
to
pay
for a
machine.
lsc
8),
$il
Detennine
interest
rate.
rsO
g).
3p
Deteftnine
interest
rate.
{sfi
s},
AP
Deteftnine
interest
rate
iso
3),
nF
Various
time
value
of money
situations.
it0
),
iiP
Vaious
time
value of
money
situations.
13il
i.
ilF
BED-24 Barney Googal
owns
a
Earage
and is contemplating
purchasing
a
tire
retread-
"in
aaCfrine
for
$14,280.
After estimating
costs
and revenues,
Barney
projects a
net
cash
flow
from
the retreading machine
of
$2,900
annually
for
8
years.
Barney
hopes
to
earn
a
return of
l|o/o on such
investments.
What
is the
present
value of
the retreading
opera-
tion?
Should
Barney Googal
purchase the
retreading
machine?
BED-25
Ramos Company
is considering
purchasing equipment.
The equipment
will
produce the
following
cash
flows: Year
1,
$30,000; Year
2,
$40,000;
Year
3,
$50,000.
Ramos
requiresaminimumrateof
return of
l2o/o.
WhatisthemaximumpriceRamosshouid
pay
for this
equipment?
BED-25
Carly
Simon
wishes to invest
$13,000
on July
I,2012,
and
have
it
accumulate
to
$50,000
by
July 1,
2022.
Instructions
Use
a financial
calculator
to determine
at
what exact
annual
rate
of
interest
Carly
must
invest
the
$18,000.
BED-27
On July
17
,2012,
James
Taylor borrowed
$60,000
from his
grandfather
to open
a clothing
store. Starting
July
17, 2018, James
has to
make
10 equal
annual
pa1'rnents
of
$8,860
each
to
repay the loan.
Instructions
Use
a
firrancial calculator
to
determine what interest rate
James
is
paying.
BED-28 As
the
purchaser of a new
house, Carrie
Underwood
has signed
a
mortgage
=-note'to
pay
the Nashville
National
Bank and
Trust Co.
$8,400
every 6
months
for
20
years,
at
the
"nd
of
which time she
will
own
the
house. At
the date
the mortgage
is
signed,
the
purchase
price was
$198,000
and Underwood
made
a
down
payment of
$20,000.
The
first
payment
will be made
6 months after
the date
the
mortgage
is
signed.
Instructions
Using
a
financial
calculator, compute
the
exact
rate of
interest
earned
on
the
mortgage
by the
bank.
BED-29
Using
a financial
calculato4
solve
for the
unknowns
in
each
of
the
following
"situaticins.
(a)
On June
1,
2012,
Holly
Golightly
purchases lakefront
properry from
her
neighbo4
George Peppard, and
agrees
to
pay the purchase
price
in
seven
payments
of
$16,000
each, the
first
payment
to
be
payable
June
l,2Ol3.
(Assume
that
interest
compounded
at an annual
rate of 6.9a/o
is implicit
in the
payments.)
What
is the
purchase
price
of
the
property?
(b)
Onl.6rry
1,201.2, SammisCorporationpurchased200of
the91,000facevalue,
7
o/o
cottpon,
I
0-year
bonds
of Malone
Inc. The
bonds
mature
on
January
I
,
2020
,
and
pay interest annually
beginning
January
1, 2013.
Sammis
purchased the
bonds
to
yteld
8.650/o.
How
much
did
Sammis
pay
for
the
bonds?
BED-30
Using
a financial
calculatot
provide a solution
to
each
of
the
following
'Situatibns.
(a)
Lynn
Anglin
owes a debt
of
g42,000
from
the
purchase of
her new
sport
utility
vehi-
cie.
The debt
bears annual
interest
of
7.8a/o compounded
monthly.
Lynn
wishes
to
pay
the
debt and
interest
in equal
monthly
pa)ments
over 8
years, beginning
one
month
hence.
What
equal
monthly
pa).rnents
will
pay
off
the debt
and
interest?
(b)
On January
l,2Ol2,
Roger
Molony offers
to buy
Dave
Feeney's
used
snowmobile
for
$8,000,
payable
in
five equal
annual
installments,
which
are
to
include
7.25o/o
intet-
est on
the unpaid
balance
and a
portion of
the
principal.
If
the
first
pal'ment is
to
be made
on December
31,2012,
how
much
will
each
payment be?