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Annuity Keys
In annuity calculations, the following keys are
used to enter or calculate the values listed
below.
C—Total number of payment periods.
I—Percent interest per payment period.
K—Present value of a series of payments plus
the present value of FV. With a savings
account, PV represents an initial deposit (not
including the first payment). With a loan, PV
represents the loan amount.
M—Amount of the regular payment. This
value may be positive or negative, depending
on the type of problem you are solving (as
explained on page 20).
L—Future value of a series of payments plus
the future value of PV. With a savings account,
FV represents the final amount withdrawn. With
a loan, FV represents any balloon payment that
must be made in addition to the last regular
payment.
1 (Computation Key)—Computes the
unknown value for annuity problems.
§ When Begin is not displayed, the 1 key
computes the unknown value for ordinary
annuities (annuities with end-of-period
payments).
§ When Begin is displayed, the 1 key
computes the unknown value for annuities
due (annuities with beginning-of-period
payments).
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