HP 0012C-90001 User Manual page 11

Making Making Making Making Financial
Calculations Easy Calculations Easy
Calculations Easy Calculations Easy
Before you begin to read through this handbook, let's take a look at how easy
financial calculations can be with your hp 12c. While working through the
examples below, don't be concerned about learning how to use the calculator;
we'll cover that thoroughly beginning with Section 1.
Example 1: Example 1: Suppose you want to ensure that you can finance your daughter's Example 1: Example 1:
college education 14 years from today. You expect that the cost will be about
$6,000 a year ($500 a month) for 4 years. Assume she will withdraw $500 at the
beginning of each month from a savings account. How much would you have to
deposit into the account when she enters college if the account pays 6% annual
interest compounded monthly ?
This is an example of a compound interest calculation. All such problems involve at
least three of the following quantities:
n number
: the of compounding periods.

i interest
: the rate per compounding period.

PV present value
: the

PMT
: the periodic

FV future value
: the

In this particular example:
n
is 4 years × 12 periods per year = 48 periods.

i
is 6% per year ÷ 12 periods per year = 0.5% per period.

PV
is the quantity to be calculated — the present value when the financial

transaction begins.
PMT
is $500.

FV
is zero, since by the time your daughter graduates she (hopefully!) will

not need any more money.
To begin, turn the calculator on by pressing the ; key. Then, press the keys
shown in the Keystro Keystro Keystrokes Keystro kes column below. kes kes
*
If you are not familiar with the use of an hp calculator keyboard, refer to the description on
pages 16 and 17.
Financial Financial Financial
of a compounded amount.
payment
amount.
of a compounded amount.
*
11 11 11 11