HP 30b Business Professional Calculator - Manual (Page 37)

Time Value of Money 29
Table 3-2 TVM Example
To reset the TVM variables to their default values, press
:x
. Press
<
or
>
repeatedly until TVM displays. Press
I
to reset the TVM values, or press
O
to
cancel. Note: the value for P/YR is not reset; it maintains its current entered value when TVM
Reset is used.
Amortization
Refer to Figure 2 for a menu map of the Amortization menu (Amort). Table 3-3 lists the keys
and variables of the Amortization menu. To open the menu, press
A
. The Amortization
menu calculations are based on values stored in the following TVM registers:
N
,
Y
,
V
,
M
and
[
.
To enter values for the TVM variables, enter a number followed by the corresponding key.
For an amortization example, see Table 3-4.
Keys Display Description
12:[ Inputs 12 as the number of payments per year,
or compounding periods per year.
360N Inputs 360 as the number of payments over 30
years.
6.5Y Inputs 6.5% as the nominal interest rate
percentage per year.
1400
00V Inputs the present value of the loan at the time
of the first payment. This value is positive (+); it
is money you receive.
0F Inputs 0 as the future value of the loan (the
remaining balance).
M Returns the monthly payment. This result is
negative (–); it is money you pay out.