Applied 40S May 6, 2009

Post on 18-May-2015

373 views 2 download

Tags:

description

Introduction to Personal Finance: Compound interest and working with the TVM Solver.

Transcript of Applied 40S May 6, 2009

Personal Finance

Money grew on trees Late Payment Reminder by flickr user wsssst

or managing your money

A = AMOUNT of money at the end of the termP = PRINCIPLE amount, the amount originally invested or borrowedr = RATE of interest as a decimal numbern = NUMBER of times the principle is compounded per yeart = TIME in years

Time Principle Rate Interest Balance

You invest $4500.00 at 5.75% interest compounded monthly. How much money will you have at the end of three years?

A = AMOUNT of money at the end of the termP = PRINCIPLE amount, the amount originally invested or borrowedr = RATE of interest as a decimal numbern = NUMBER of times the principle is compounded per yeart = TIME in years

Using the TVM (Time Value Money) Solver ...

Total Number of payments to the account (#years in account)(#times payments/year)

N=36I%=5.75PV=-4500PMT=0FV=5345.02P/Y=12C/Y=12PMT: END BEGIN

You invest $4500.00 at 5.75% interest compounded monthly. How much money will you have at the end of three years?

Using the TVM (Time Value Money) Solver ...

Total Number of payments to the account (#years in account)(#times payments/year)

Annual Interest rate as a percent

N=36I%=5.75PV=-4500PMT=0FV=5345.02P/Y=12C/Y=12PMT: END BEGIN

Using the TVM (Time Value Money) Solver ...

Total Number of payments to the account (#years in account)(#times payments/year)

Annual Interest rate as a percent Present Value

of the account

N=36I%=5.75PV=-4500PMT=0FV=5345.02P/Y=12C/Y=12PMT: END BEGIN

Using the TVM (Time Value Money) Solver ...

Total Number of payments to the account (#years in account)(#times payments/year)

Annual Interest rate as a percent Present Value

of the accountPayMenTs made to the account Future Value

of the account

N=36I%=5.75PV=-4500PMT=0FV=5345.02P/Y=12C/Y=12PMT: END BEGIN

Using the TVM (Time Value Money) Solver ...

Total Number of payments to the account (#years in account)(#times payments/year)

Annual Interest rate as a percent Present Value

of the accountPayMenTs made to the account Future Value

of the accountNumber of Payments made per Year Number of Compounding

periods per Year

N=36I%=5.75PV=-4500PMT=0FV=5345.02P/Y=12C/Y=12PMT: END BEGIN

PMT: Depends on when payments are made each compounding period, we usually use END

Using the TVM (Time Value Money) Solver ...

Total Number of payments to the account (#years in account)(#times payments/year)

Annual Interest rate as a percent Present Value

of the accountPayMenTs made to the account Future Value

of the accountNumber of Payments made per Year Number of Compounding

periods per Year

N=36I%=5.75PV=-4500PMT=0FV=5345.02P/Y=12C/Y=12PMT: END BEGIN

[ALPHA] [SOLVE]

You invest $4500.00 at 5.75% interest compounded monthly. How much money will you have at the end of three years?

What's the difference?

N=I%=PV=PMT=FV=P/Y=C/Y=PMT: END BEGIN

N=I%=PV=PMT=FV=P/Y=C/Y=PMT: END BEGIN

Solve for N (the number of payments) ...

To buy a new car you must take out a loan of $10 593.30. You can afford a payment of $238 per month. The dealership offers you an annual interest rate of 3.75% compounded monthly. How many payments must you make?

How much interest have you paid?N=I%=PV=PMT=FV=P/Y=C/Y=PMT: END BEGIN

Solve for I (the rate of interest) ...A certain university program will cost $20 000. What annual interest rate, compounded monthly, must you obtain if you can save $288.50 per month for the next five years and hope to have all the money saved by that time?

N=I%=PV=PMT=FV=P/Y=C/Y=PMT: END BEGIN

Solve for PV (the value now) ...

You plan to buy a car. You can make monthly payments of $525 and the interest rate advertised for car loans is 6.25%, compounded monthly. If the dealership is offering you financing for two years how much car can you afford?

N=I%=PV=PMT=FV=P/Y=C/Y=PMT: END BEGIN

Solve for FV (the future value) ...

You decide to invest $6500. The bank offers an interest rate of 8.25% compounded annually. What will your money be worth in 7 years if the interest rate remains unchanged?

N=I%=PV=PMT=FV=P/Y=C/Y=PMT: END BEGIN

HOMEWORK

Watching Money Grow ...

Calculate the final balance if $7500 were invested at 8% per year, compounded semi-annually for 6 years.

How long will it take $12 000 invested at 7.2% per year, compounded quarterly, to grow to $15 000?

N=I%=PV=PMT=FV=P/Y=C/Y=PMT: END BEGIN

N=I%=PV=PMT=FV=P/Y=C/Y=PMT: END BEGIN

HOMEWORK

Investing Regularly ...Calculate the final balance if $1500 were invested at 8% per year, compounded semi-annually, with additional investments of $1 000 at the end of every six months for five years.

How long will it take to save $35 000, if $2 500 were invested at 7.2% per year, compounded quarterly, followed by an additional $400 at the end of each 3-month period?

N=I%=PV=PMT=FV=P/Y=C/Y=PMT: END BEGIN

N=I%=PV=PMT=FV=P/Y=C/Y=PMT: END BEGIN

HOMEWORK