Appendix B: More About Calculations
V
Depreciation
For the given year number (YR) and with Factor (FACT) as a percentage:
For the last year of depreciation, DB equals the remaining depreciable value for the prior year.
Statistics
, ,
SL
BASIS SALV–
LIFE
-------------------------------------=
SOYD
BASIS SALV–
LIFE
LIFE 1+()
2
---------------------------
×
------------------------------------------------
LIFE YR– 1+()×=
DB
BASIS
FACT
100
---------------
×
LIFE
---------------------------------------
1
FACT
100
---------------
⎝⎠
⎛⎞
LIFE
---------------------–
⎝⎠
⎜⎟
⎜⎟
⎜⎟
⎛⎞
YR 1–()
×=
Sx
x
2
∑
x
∑
()
2
n
----------------–
n 1–
----------------------------------=
Sy
y
2
∑
y
∑
()
2
n
----------------–
n 1–
----------------------------------=
σx
x
2
∑
x
∑
()
2
n
----------------–
n
----------------------------------=
σy
y
2
∑
y
∑
()
2
n
----------------–
n
----------------------------------=
r
xy
∑
x
∑
y
∑
n
------------------–
x
2
∑
x
∑
()
2
n
----------------–
⎝⎠
⎜⎟
⎛⎞
y
2
∑
y
∑
()
2
n
----------------–
⎝⎠
⎜⎟
⎛⎞
------------------------------------------------------------------------------------=
m
xy
∑
x
∑
y
∑
n
------------------–
x
2
∑
x
∑
()
2
n
----------------–
-------------------------------------=
Comments to this Manuals