250 B: More About Calculations
File name : English-M02-1-040308(Print).doc Print data : 2004/3/9
− +
− +
+
−
×
+
∑
=
=
+
1
1
1
1
%
%
1
DSC
N
E
N
DSC
K
K
E
CALL
PRICE
Y
M
CPN
A
CPN
M
E
M
Y
M
The “end-of-month” convention is used to determine coupon dates in the
following exceptional situations. (This affects calculations for
YLD%,
PRICE
, and
ACCRU
.)
If the maturity date falls on the last day of the month, then the coupon
payments will also fall on the last day of the month. For example, a
semiannual bond that matures on September 30 will have coupon
payment dates on March 31 and September 30.
If the maturity date of a semiannual bond falls on August 29 or 30,
then the February coupon payment dates will fall on the last day of
February (28, or 29 in leap years).
Depreciation Calculations
For the given year,
YR#
:
−
×
−
−
×
−
+
+
×
×
×
−
=
=
=
=
(
#
1)
%
100
(
#
1)
(
1)
2
% /100
(
% /100)
1
YR
ACRS
ACRS
BASIS
BASIS
SALV
SL
LIFE
BASIS
SALV
SOYD
LIFE
YR
LIFE
LIFE
BASIS
FACT
FACT
DB
LIFE
LIFE