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190 Appendix D: Formulas Used
File name: hp 12c_user's guide_English_HDPMBF12E44 Page: 190 of 209
Printered Date: 2005/7/29 Dimension: 14.8 cm x 21 cm
Program for partial year:
)(
12
1
1
SALSBV
Y
SOYD
L
DPN −⋅
⎟
⎠
⎞
⎜
⎝
⎛
⋅
⎟
⎠
⎞
⎜
⎝
⎛
=
)(
2
1
SALDSBV
SOYD
jLADJ
DPN
LADJ
j
−−⋅
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
+−
=
for j
≠
1
where
⎟
⎠
⎞
⎜
⎝
⎛
−=
12
1
Y
LLADJ
Declining-Balance Depreciation
Keyboard function:
L
FACT
RBVDPN
j
j
100
1
⋅=
−
for j = 1, 2, …, L
Program for partial first year:
12100
1
1
Y
L
FACT
SBVDPN ⋅⋅=
L
FACT
RBVDPN
j
j
100
1
⋅=
−
for j
≠
1
Modified Internal Rate of Return
n = number of compounding periods.
NFV
P
= Net future value of the positive cash flows.
NPV
N
= Net present value of the negative cash flows.
⎥
⎥
⎥
⎦
⎤
⎢
⎢
⎢
⎣
⎡
−
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
−
= 1100
1
n
N
P
NPV
NFV
MIRR
Advance Payments
A = number of payments made in advance.
⎥
⎥
⎦
⎤
⎢
⎢
⎣
⎡
+
+−
+−
=
−−
−
A
i
i
iFVPV
PMT
An
n
)(
)1(1
)1(