Interest rate conversions, Cash-flow calculations – HP 10B User Manual
Page 134
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For each payment amortized:
INT'
«
BALxi (¡NT'
is rounded to the current display selling;
¡NT'
= 0 for period 0 in Begin mode.)
¡NT
=
INr
(with sign
oiPMT)
PRN
=
PMT
+
INr
+
PPN
E!NT^
= S/yV7^rf +
¡NT
IPRN^
-
+
PP^
Interest Rate Conversions
EFF%
1
+
NOM%
lOOxP/YR
r / Y R
-
1
xlOO
Cash-Flow Calculations
i%
= periodic interest rate
j
= the group number of the cash flow.
CFj
= amount of the cash flow for group
= number of times the cash flow occurs for group
j,
k
= the group number of the last group of cash flows.
Nj =
S m = total number of cash flows prior to group j.
\<I<J
o I J
NPV
=
+ S
CFj
X
1
-
1
+
i%
100
-"J
i%
100
X
1
+
i%
100
When
NPV
= 0, the solution for
t%
is the periodic internal rate of return.
B: More About Catculations 131