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Section 4: Additional Financial Functions 75
File name: hp 12c pt_user's guide_English_HDPMF123E27 Page: 75 of 275
Printed Date: 2005/8/1 Dimension: 14.8 cm x 21 cm
Keystrokes Display
500
ÞgK
–500.00
Stores CF
1
(with minus sign for a
negative cash flow).
4500
gK
4,500.00
Stores CF
2
.
5500
gK
5,500.00
Stores CF
3
.
4500
gK
4,500.00
Stores CF
4
.
130000
gK
130,000.00
Stores CF
5
.
:n
5.00
Checks number of cash flow amounts
entered (in addition to CF
0
).
13
¼
13.00
Stores i.
fl
212.18
NPV.
Since NPV is positive, the investment would increase the financial value of the
investor’s assets.
Calculating
NPV
for Grouped Cash Flows.
A maximum of 80 cash flow
amounts (in addition to the initial investment CF
0
) can be stored in the hp 12c
platinum.
*
However, problems involving more than 80 cash flows can be handled
if among the cash flows there are equal consecutive cash flows. For such problems,
you merely enter along with the amounts of the cash flows the number of times —
up to 99 — each amount occurs consecutively. This number is designated N
j
,
corresponding to cash flow amount CF
j
, and is entered using the
ga
keys. Each
N
j
is stored in a special register inside the calculator.
This method can, of course, be used for problems involving fewer than 80 cash
flows — and it will require fewer storage registers than the method described
above under Calculating NPV for Ungrouped Cash Flows. Equal consecutive cash
flows can be entered using that method — provided there are enough storage
registers available to accommodate the total number of individual cash flows. The
facility of grouping equal consecutive cash flows is provided to minimize the
number of storage registers required.
Note: When entering cash flow amounts — including the initial investment
CF
0
— remember to observe the cash flow sign convention by pressing Þ
after keying in the amount for a negative cash flow.
*
If you have stored a program in the calculator, the number of registers available for storing
cash flow amounts may be less than 81.