E-69
A
DEPR Mode Financial Calculation Variables
(VARS)
• Variables
n
,
I
, PV, and FV are used in the DEPR Mode.
• The values of DEPR Mode variables are retained even if
you change to another mode. Note, however, that DEPR
Mode variables are also used by other modes, so
performing an input or calculation operation may change
the values assigned to them.
• Though DEPR Mode variables are financial calculation
variables, they are also used by arithmetic and function
operations in the COMP Mode.
A
Calculation Formulas
Depreciation for an item acquired part way through a year
can be calculated by month.
u
Straight-Line Method
The straight-line method calculates depreciation for a given
period.
SL
j
: depreciation charge for the
j
th year
n
: useful life
PV
: original cost (basis)
FV
: residual book value
j
: year for calculation of depreciation cost
YR
1 : number of months in the first year of depreciation
YR
1
(
PV
–
FV
)
SL
1
=
n
12
u
(
PV
–
FV
)
SL
j
=
n
12–
YR
1
(
YR
1
G
12)
(
PV
–
FV
)
n
12
u
SL
n
+1
=