Straight-Line Depreciation. HP 12C Platinum Financial Calculator, 12c

Appendix E: Formulas Used 255

Straight-Line Depreciation

Keyboard function:

DPN

J

=

SBV

L

− SAL

for j = 1, 2, …, L

Program for partial first year:

DPN

1

=

SBV −

L

SAL

⋅

Y

1

12

DPN

J

=

SBV −

L

SAL

for j = 2, 3, …, L

DPN

L + 1

= RDV

L

Sum-of-the-Years-Digits Depreciation

SOYD k

=

( W + 1 )( W

2

+ 2 F ) where W = integer part of k

F = fractional part of k.

(i.e., for k = 12.25 years, W = 12 and F = 0.25).

Keyboard function:

DPN

J

=

( L − j + 1

SOYD

L

)

⋅ ( SBV − SAL )

Program for partial year:

DPN

1

=

L

SOYD

⋅

⎛

⎝

Y

1

12

⎞

⎠

⋅ ( SBV − SAL )

DPN j

=

LADJ − j + 2

SOYD

LADJ where LADJ = L −

⎛

⎝

Y

1

12

⎞

⎠

⋅ ( SBV − D

1

− SAL ) for j ≠ 1

Declining-Balance Depreciation

Keyboard function:

DPN j

= RBV j − 1

⋅

FACT

100 L

for j = 1, 2, …, L

Program for partial first year:

DPN

1

= SBV ⋅

FACT

100 L

⋅

Y

1

12

File name: hp 12c pt_user's guide_English_HDPMF123E27 Page: 255 of 275

Printed Date: 2005/8/1 Dimension: 14.8 cm x 21 cm