Interest rate conversions, Cash-flow calculations – HP 17bII+ User Manual
Page 248
248 B: More About Calculations
File name : English-M02-1-040308(Print).doc Print data : 2004/3/9
INT’ ＝ BAL x i (INT’ is rounded to the current display setting;
INT’ ＝ 0 for period 0 in Begin mode)
INT ＝ INT’ (with sign of PMT )
PRIN ＝ PMT + INT’
PRIN ＝ PMT + INT’
BAL
new
＝ BAL
old
+ PRIN
∑INT
new
＝ ∑INT
old
+ INT
∑PRIN
new
＝ ∑PRIN
old
+ PRIN
Interest Rate Conversions
Periodic compounding
%
% 1
1 100
100
P
NOM
EFF
P
+
−
Ч
Ч
＝
Continuous compounding
%
100
%
1 100
NOM
EFF
e
−
×
＝
Cash-Flow Calculations
j ＝ the group number of the cash flow.
CF
j
＝ amount of the cash flow for group j.
n
j
＝ #TIMES the cash flow occurs for group j.
k ＝ the group number of the last group of cash flows.
0
1
total number of cash flows prior to group j
(
x ( % : )
( % :
))
j
l
l
k
j
j
j
j
N
n
NPV
CF
CF
USPV i
n x SPPV i
N
≤
=
+
∑
∑
1
＜j
=
＝
＝
When NPV = 0, the solution for i% is IRR%.