HP 12C Financial 12C DPNJ, DPN, SOYD, DPNJ = (L − j + 1) ⋅ (SBV − SAL), SOYDL, DPN, = RBV −, DPN1 = SBV ⋅ FACT100L ⋅ 12Y1, SBV − SAL, ⋅ (SBV − D − SAL), LADJ = L − ⎜, FACT

Appendix E: Formulas Used 255

Straight-Line Depreciation

Keyboard function:

DPNJ	=		SBV − SAL		for j = 1, 2, …, L
			L
Program for partial first year:
DPN =		SBV − SAL		⋅	Y1
1			L	12
DPNJ	=		SBV − SAL		for j = 2, 3, …, L
			L
DPNL + 1	= RDVL

Sum-of-the-Years-Digits Depreciation

SOYDk = (W + 1)(W + 2F) 2

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:

DPNJ = (L − j + 1) ⋅ (SBV − SAL)

SOYDL

Program for partial year:

⎛

L

⎞

⎛

Y

⎞

DPN

= ⎜

⎟ ⋅

⎜

1

⎟

⋅ (SBV

− SAL)

1

⎝ SOYD ⎠

⎝12⎠

⎛ LADJ

− j + 2

⎞

DPN

j

= ⎜

⎟

⋅ (SBV − D − SAL)

for j ≠ 1

⎜

SOYDLADJ

⎟

1

⎝

⎠

⎛

Y

⎞

where

LADJ = L − ⎜

1

⎟

⎝12⎠

Declining-Balance Depreciation

Keyboard function:

DPN

j

= RBV −

⋅

FACT

for j = 1, 2, …, L

100L

j 1

Program for partial first year:

DPN1 = SBV ⋅ FACT100L ⋅ 12Y1

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