# Calculating the Future and Present Value of Money.

## Presentation on theme: "Calculating the Future and Present Value of Money."— Presentation transcript:

Calculating the Future and Present Value of Money

FV = p (1 + i) n Things we need to know: Interest rate = i Number of periods (years) invested = n Principal amount invested = p Also, if the principal amount is not given, we need to know the future value = FV Future Value

FV = p (1 + i) n Let’s assume that you have \$1,000 to invest over a period of 5 years. Your investment is expected to earn 7% interest. p = \$1,000 i = 7% n = 5 Here is the formula you would use: FV = \$1,000 (1 +.07) 5

FV = \$1,000 (1 +.07) 5 First, calculate the factor using the rate and length portion of the formula: 1.07 5 = 1.07 1.07 1.07 1.07 1.07 = 1.40 Next, multiply the factor by the amount invested to determine the future value \$1,000 1.40 = \$1,400 The answer is \$1,400. What does this mean?

Future Value Based on the previous information, your \$1,000 would be worth \$1,400 five years from now. This information can be useful when trying to plan for your future or purchase the luxury yacht you have been wanting.

Present Value PV = FV 1 / (1 + i) n Things we need to know: Interest rate = i Number of periods (years) = n Future value = FV Also, if the future value is not given, we need to know the present value = PV

PV = FV 1 / (1 + i) n Let’s assume that you need \$1,000,000 to purchase your luxury yacht. You want to purchase this yacht in five years. The rate of return is 8%. FV = \$1,000,000 i = 8% n = 5 Here is the formula you would use: PV = \$1,000,000 1 / (1 +.08) 5

PV = \$1,000,000 1 / (1 +.08) 5 First, calculate the factor. This is done in two steps: 1.Calculate the denominator using the rate and length portion of the formula: 1.08 5 = 1.08 1.08 1.08 1.08 1.08 = 1.469 2.Divide t by the denominator calculated above to determine the factor: t / 1.469 = 0.6807 Then, multiply FV by the factor to arrive at PV: \$1,000,000 0.6807 = \$680,700 The answer is \$680,700. What does this mean?

Present Value Based on the previous information, you would need to invest \$680,700 now to purchase a \$1,000,000 yacht in five years.

Lottery Winners Lottery winners are often faced with a big decision: Do I take the cash option, or do I take the annual payments over the course of a 25-year period? Let’s assume the lottery you have just won is valued at \$34 million*, with a cash option of \$16.2 million*. Using the time value of money, we can calculate which payment method would net you more money. *Taxes not included

Cash Option vs. Annuity Option If you were to select the cash option, you would receive \$16.2 million today. Let’s calculate what your annuity payment option would be worth today. Your annual payments would be \$1,360,000 for a 25-year period (\$34,000,000 / 25 years), and we will assume an interest rate of 6%.

Annuity Option

Cash Option vs. Annuity Option Based upon our calculations, it would be more beneficial to select the Annuity payouts. This would result in receiving an additional \$1,168,560 over a 25-year period in today’s time value of money.

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