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Przeglądanie stron 182
Chapter 11: Financial Application  183
Compound Interest
u When calculating PV, PMT, FV, n
I
% 0
PV =
× PMT × FV
β
γ
α
PMT =
PV F
V
FV =
PV PMT
n =
log
(1 + iS ) × PMT FV × i
(1 + iS ) × PMT + PV × i
{}
log (1 + i)
I
% = 0
PV = – (PMT × n + FV )
PMT = –
n
PV + FV
FV = – (PMT × n + PV )
n =
PMT
PV + FV
= (1 + i × S) ×
i
1
β
α
When “Odd Period” is “Off” When “Odd Period” is “CI” When “Odd Period” is “SI”
= (1 + i)
–n
(1 + i)
–Intg (n)
=
1
(1 + i)
Frac (n)
1 + i × Frac (n)
When “Payment Date” is “End” When “Payment Date” is “Begin”
S =
01
When P/Y = C/Y = 1 When P/Y 1 and/or C/Y 1
i =
u When calculating I%
i
(effective interest rate) is calculated using Newton’s Method.
× PV + × PMT + × FV = 0
I% is calculated from i using the formulas below:
When P/Y = C/Y = 1 When P/Y 1 and/or C/Y 1
I% =
Interest (
I%) calculations are performed using Newton’s Method, which produces approximate values whose
precision can be affected by various calculation conditions. Interest calculation results produced by this
application should be used keeping the above in mind, or results should be confirmed separately.
Cash Flow
NPV = CF0 + + + + … +
(1+ i)
CF
1
(1+ i)
2
CF2
(1+ i)
3
CF3
(1+ i)
n
CFn
(
=
100
%
, n: natural number up to 80)
NFV = NPV × (1 + i )
n
IRR is calculated using Newton’s Method.
0 = CF0 + + + + … +
(1+ i)
CF
1
(1+ i)
2
CF2
(1+ i)
3
CF3
(1+ i)
n
CFn
100
I%
I%
(1 + ) – 1
C/Y
P/Y
100 × [C/Y ]
i × 100
( )
×
C/Y
×
100
(1 + i )–1
P/Y
C/Y
Przeglądanie stron 182
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