# Finance

## Future Value of a Single Deposit (Simple Interest)

 $F=P\left(1+rt\right)$

### Enter Values

 Amount of deposit ($P$): Annual interest rate ($r$): % Number of years ($t$): Future value ($F$):
 Report constant dollars. Inflation rate: %

### Solve for ...

Amount of deposit
Interest rate
Number of years
Future value

## Future Value of a Single Deposit (Compound Interest)

 $F=P{\left(1+\frac{r}{k}\right)}^{kt}$

### Enter Values

 Amount of deposit ($P$): Annual interest rate ($r$): % Frequency of compounding ($k$): times per year Number of years ($t$): Future value ($F$):
 Report constant dollars. Inflation rate: %

### Solve for ...

Amount of deposit
Interest rate
Number of years
Future value

## Future Value of an Annuity (Repeated Deposits)

 $F=P\left(\frac{{\left(1+\frac{r}{k}\right)}^{nk}-1}{r/k}\right)$

### Enter Values

 Amount of deposit ($P$): Annual interest rate ($r$): % Frequency of depositand compounding ($k$): times per year Number of years ($n$): Future value ($F$):
 Report constant dollars. Inflation rate: % Deposit constant dollars.

### Solve for ...

Amount of deposit
Interest rate
Number of years
Future value

## Present Value of an Annuity (Repeated Withdrawals)

 $M=P\left(\frac{r/k}{1-{\left(1+\frac{r}{k}\right)}^{-nk}}\right)$

### Enter Values

 Present value ($P$): Annual interest rate ($r$): % Frequency of withdrawaland compounding ($k$): times per year Number of years ($n$): Amount of withdrawal ($M$):
 Withdraw constant dollars. Inflation rate: %

### Solve for ...

Present value
Interest rate
Number of years
Amount of withdrawal

## Inflation

### U.S. Inflation Calculator

Use the U.S. inflation calculator. This calculation uses annual inflation rates from 1913 up to the present time.

### Prices

$F=P{\left(1+i\right)}^{n}$

 Past price ($P$): Inflation rate ($r$): Number of years ($n$): Future price ($F$):

Past price
Inflation rate
Number of years
Future price

### Value of Money

$F=\frac{P}{{\left(1+i\right)}^{n}}$

 Past value ($P$): Inflation rate ($r$): Number of years ($n$): Future value ($F$):

Past value
Inflation rate
Number of years
Future value