**Financial Keys**-
N, number of periods

%i, rate of interest per period

PMT, payment per period

PV, present value

FV, future value **Conventions**-
Payments which increase the balance are negative numbers.

Payments which decrease the balance are positive numbers.

Future values are balances, usually entered as positive numbers. **Floating Decimal**- Press 2nd Decimal until DEC2 disappears from the display.
**Financial Mode**- Press 2nd FIN.
**Clearing Financial Data**- Press 2nd FIN.
**Beginning Annuities**- Substitute the DUE key for the CPT key at the time you compute the missing value.
**Entering Financial Data**- Display the value, then press the financial key.
**Computing Values**-
Press CPT (or DUE for a beginning annuity), followed by the financial key to be computed.
**Example:**-
Tom's account begins with $500, and earns 6% per year, compounded
monthly. He deposits an additional $50 at the end of each month. What
will the balance be at the end of one year?
The variables are:

N = 12 I = 6/12 = 0.5 PMT = 50 increasing PV = 500 FV = ??? - The keystrokes are:
- 2nd FIN

12 N

0.5 %i

50 +/- PMT

500 PV

CPT FV

The answer is $1,147.62, rounded to the nearest cent.