186  Section 13: Investment Analysis 
 
File name: HP 12c Pt Converted_user's guide_English_HDP0F123E02_080207  Page: 200 of 281   
Printed Date:  {  2007/8/2Dimension: 14.8 cm x 21 cm 
 
RPN Mode: 
6.  Key in the year desired then press \. 
7.  Key in the number of months in first year
*
 then press t.
†
 The display 
will show the amount of depreciation for the desired year. If desired, 
press ~ to see the remaining depreciable value, then press 
:$:3=~-:M- to find the total depreciation through 
the current year. 
ALG Mode: 
6.  Key in the year desired then press ³. 
7.  Key in the number of months in first year* then press t.† The display 
will show the amount of depreciation for the desired year. If desired, 
press  ~ to see the remaining depreciable value, then press 
:$=:3-~-:M³ to find the total depreciation 
through the current year. 
8. Press t for the amount of depreciation then, if desired, press ~ for the 
remaining depreciable value for the next year. Repeat this step for the 
following years. 
9.  For a new case press gi000 and return to step 2. 
Example:
 A commercial movie camera is purchased for $12,000. If maintained 
properly, the camera has a useful life expectancy of 25 years with $500 salvage 
value. Using the sum-of-the-years-digits method, what is the amount of depreciation 
and the remaining depreciable value for the 4th and 5th years
?
 Assume the first 
depreciation year is 11 months long. 
Keystrokes 
(RPN mode) 
Keystrokes 
(ALG mode) 
Display  
f]
 
f[
 
 
 
f
CLEAR
G
 
f
CLEAR
G
 
 
 
12000
$
 12000
$
 
12,000.00 
Book value. 
500
M
 500
M
 
500.00 
Salvage value. 
25
n
 25
n
 
25.00 
Life. 
4
\
 4
³
 
4.00 
Year desired. 
 
*
 Refer to straight-line depreciation instruction note, page 177.   
† The display will pause showing the year number before showing the amount of depreciation 
for that year.