Calculator User Manual

Appendix — Reference Information 91
where Duration is calculated using one of the following formulas used to
calculate Macaulay duration:
• For a bond price with one coupon period or less to redemption:
• For a bond price with more than one coupon period to redemption:
Depreciation
RDV = CST N SAL N accumulated depreciation
Values for DEP, RDV, CST, and SAL are rounded to the number of
decimals you choose to be displayed.
In the following formulas,
FSTYR = (13 N MO1) P 12.
Straight-line depreciation
First year:
Last year or more:
DEP = RDV
Dur 1
Y
M
-----+


Dsr
Rv
100 R×
M
------------------+
1
Dsr Y×
EM×
-------------------


+
2
------------------------------------------
×
EMPri××
----------------------------------------------------------------
⋅=
CST SAL–
LIF
---------------------------
C
ST SAL–
LIF
-
--------------------------
FSTYR×