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2-1 CHAPTER 2 Time Value of Money Future Value Present Value Annuities Rates of Return Amortization.

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Presentation on theme: "2-1 CHAPTER 2 Time Value of Money Future Value Present Value Annuities Rates of Return Amortization."— Presentation transcript:

1 2-1 CHAPTER 2 Time Value of Money Future Value Present Value Annuities Rates of Return Amortization

2 2-2 Future Value Future value An investment amount grows Compounding

3 2-3 Future Value Start with $100 What will it be worth in 3 years

4 2-4 Present Value Present value What do I need today to have a known amount in the future

5 2-5 Present Value If I need $10,000 in five years How much do I have to start with

6 2-6 Annuity A number of equal payments

7 2-7 Future Value Future Value of an Annuity What will I have if I put $100 in the bank every month for 5 years?

8 2-8 Present Value Present Value of an Annuity What should I pay for 36 equal monthly payments of $100 ?

9 2-9 Time lines Show the timing of cash flows. CF 0 CF 1 CF 3 CF 2 0123 I%

10 2-10 Time lines Time 0 is today (the beginning) Time 1 is the end of the first period Period can be day, month, quarter, year CF 0 CF 1 CF 3 CF 2 0123 I%

11 2-11

12 2-12 FV N = PV (1 + I) N FV Future Value NNumber of time periods PVPresent Value I Interest Rate (per time period)

13 2-13 What is the future value (FV) of an initial $100 after 3 years, if I/YR = 10%? Finding the FV of a cash flow or series of cash flows is called compounding. FV can be calculated using FV table or a calculator. FV = ? 0123 10% 100

14 2-14 Solving for FV: The step-by-step and formula methods After 1 year: FV 1 = PV (1 + I) = $100 (1.10) = $110.00 After 2 years: FV 2 = PV (1 + I) 2 = $100 (1.10) 2 =$121.00 After 3 years: FV 3 = PV (1 + I) 3 = $100 (1.10) 3 =$133.10 After N years (general case): FV N = PV (1 + I) N

15 2-15 FV N = PV (1 + I) N FV Future Value NNumber of time periods PVPresent Value I Interest Rate (per time period)

16 2-16

17 2-17

18 2-18 Drawing time lines 100 012 I% $100 lump sum due in 2 years

19 2-19 Solving for PV:

20 2-20 PV = ?100 What is the present value (PV) of $100 due in 3 years, if Interest per Year = 10%? Finding PV of a cash flow or series of cash flows is called discounting (the reverse of compounding). The PV shows the value of cash flows in terms of today’s purchasing power. 0123 10%

21 2-21

22 2-22

23 2-23 Drawing time lines 100 0123 I% Ordinary Annuity (payments at end of period) 3 year $100 ordinary annuity

24 2-24 What is the present value of a 5-year $100 ordinary annuity at 10%? N = 5, I/YR = 10, PMT = 100 PV =

25 2-25 What is the present value of a 5-year $100 ordinary annuity at 10%? N = 5, I/YR = 10, PMT = 100 PV = $379.08

26 2-26 What if it were a 10-year annuity? A 25-year annuity? A perpetuity? 10-year annuity N = 10, I/YR = 10, PMT = 100, solve for PV = $614.46. 25-year annuity N = 25, I/YR = 10, PMT = 100, FV = 0; solve for PV = $907.70. Perpetuity PV = PMT / I = $100/0.1 = $1,000. 10-year annuity N = 10, I/YR = 10, PMT = 100, PV = 25-year annuity N = 25, I/YR = 10, PMT = 100, PV = Perpetuity PV = PMT / I

27 2-27 What if it were a 10-year annuity? A 25-year annuity? A perpetuity? 10-year annuity N = 10, I/YR = 10, PMT = 100, solve for PV = $614.46. 25-year annuity N = 25, I/YR = 10, PMT = 100, FV = 0; solve for PV = $907.70. Perpetuity PV = PMT / I = $100/0.1 = $1,000. 10-year annuity N = 10, I/YR = 10, PMT = 100 PV = $614.46. 25-year annuity N = 25, I/YR = 10, PMT = 100 PV = $907.70. Perpetuity PV = PMT / I = $100/0.1 = $1,000.

28 2-28 What is the difference between an ordinary annuity and an annuity due? Ordinary Annuity PMT 0123 i% PMT 0123 i% PMT Annuity Due

29 2-29

30 2-30 Drawing time lines 100 50 75 0123 I% -50 Uneven cash flow stream

31 2-31 Solving for PV: Uneven cash flow stream CF 0 = 0 CF 1 = 100 CF 2 = 300 CF 3 = 300 CF 4 = -50 What else need to know?

32 2-32 What is the PV of this uneven cash flow stream? 0 100 1 300 2 3 10% -50 4 90.91 247.93 225.39 -34.15 530.08 = PV

33 2-33

34 2-34 Paying off a loan A car loan is an annuity (from the financers point of view PV of the annuity is the amount of the loan Variables Interest Rate # Payments Amount of Loan Solve for payment amount

35 2-35

36 2-36 Example Loan Amount: $100,000 Rate: 6% # Payments: 5 PV Annuity Factor: 4.2124 Payment = 100,000 ÷ 4.2124 = $23,739.44

37 2-37 Car Loan Loan Amount: $5,000 Interest Rate: 12% Number of Payments: 30 ( Monthly ) Loan Payment:

38 2-38 Amortization Table Loan: $5,000 Rate: 12% Payments: 30 (Monthly) PERIODPYMNTINTERESTPRINCIPAL 0 5,000.00 1 193.74 50.00 143.74 4,856.26 2 193.74 48.56 145.18 4,711.08 3 193.74 47.11 146.63 4,564.45 4 193.74 45.64 148.10 4,416.36 5 193.74 44.16 149.58 4,266.78 6 193.74 42.67 151.07 4,115.71 7 193.74 41.16 152.58 3,963.12 8 193.74 39.63 154.11 3,809.01

39 2-39

40 2-40

41 2-41 The Power of Compound Interest A 20-year-old student wants to save $3 a day for her retirement. Every day she places $3 in a drawer. At the end of the year, she invests the accumulated savings ($1,095) in a brokerage account with an expected annual return of 12%. How much money will she have when she is 65 years old?

42 2-42 Will the FV of a lump sum be larger or smaller if compounded more often, holding the stated I% constant? LARGER, as the more frequently compounding occurs, interest is earned on interest more often. Annually: FV 3 = $100(1.10) 3 = $133.10 0 123 10% 100133.10 Semiannually: FV 6 = $100(1.05) 6 = $134.01 0123 5% 456 134.01 123 0 100

43 2-43 Classifications of interest rates Nominal rate (I NOM ) – also called the quoted or state rate. An annual rate that ignores compounding effects. I NOM is stated in contracts. Periods must also be given, e.g. 8% Quarterly or 8% Daily interest. Periodic rate (I PER ) – amount of interest charged each period, e.g. monthly or quarterly. I PER = I NOM / M, where M is the number of compounding periods per year. M = 4 for quarterly and M = 12 for monthly compounding.

44 2-44 Classifications of interest rates Effective (or equivalent) annual rate (EAR = EFF%) – the annual rate of interest actually being earned, accounting for compounding. EFF% for 10% semiannual investment EFF%= ( 1 + I NOM / M ) M - 1 = ( 1 + 0.10 / 2 ) 2 – 1 = 10.25% Should be indifferent between receiving 10.25% annual interest and receiving 10% interest, compounded semiannually.

45 2-45 Why is it important to consider effective rates of return? Investments with different compounding intervals provide different effective returns. To compare investments with different compounding intervals, you must look at their effective returns (EFF% or EAR). See how the effective return varies between investments with the same nominal rate, but different compounding intervals. EAR ANNUAL 10.00% EAR QUARTERLY 10.38% EAR MONTHLY 10.47% EAR DAILY (365) 10.52%

46 2-46 When is each rate used? I NOM written into contracts, quoted by banks and brokers. Not used in calculations or shown on time lines. I PER Used in calculations and shown on time lines. If M = 1, I NOM = I PER = EAR. EARUsed to compare returns on investments with different payments per year. Used in calculations when annuity payments don’t match compounding periods.

47 2-47 What is the FV of $100 after 3 years under 10% semiannual compounding? Quarterly compounding?

48 2-48 Can the effective rate ever be equal to the nominal rate? Yes, but only if annual compounding is used, i.e., if M = 1. If M > 1, EFF% will always be greater than the nominal rate.

49 2-49 What’s the FV of a 3-year $100 annuity, if the quoted interest rate is 10%, compounded semiannually? Payments occur annually, but compounding occurs every 6 months. Cannot use normal annuity valuation techniques. 01 100 23 5% 45 100 6

50 2-50 Method 1: Compound each cash flow 110.25 121.55 331.80 FV 3 = $100(1.05) 4 + $100(1.05) 2 + $100 FV 3 = $331.80 01 100 23 5% 45 100 6

51 2-51 Loan amortization Amortization tables are widely used for home mortgages, auto loans, business loans, retirement plans, etc. Financial calculators and spreadsheets are great for setting up amortization tables. EXAMPLE: Construct an amortization schedule for a $1,000, 10% annual rate loan with 3 equal payments.

52 2-52 Step 2: Find the interest paid in Year 1 The borrower will owe interest upon the initial balance at the end of the first year. Interest to be paid in the first year can be found by multiplying the beginning balance by the interest rate. INT t = Beg bal t (I) INT 1 = $1,000 (0.10) = $100

53 2-53 Step 3: Find the principal repaid in Year 1 If a payment of $402.11 was made at the end of the first year and $100 was paid toward interest, the remaining value must represent the amount of principal repaid. PRIN= PMT – INT = $402.11 - $100 = $302.11

54 2-54 Step 4: Find the ending balance after Year 1 To find the balance at the end of the period, subtract the amount paid toward principal from the beginning balance. END BAL= BEG BAL – PRIN = $1,000 - $302.11 = $697.89

55 2-55 Constructing an amortization table: Repeat steps 1 – 4 until end of loan Interest paid declines with each payment as the balance declines. What are the tax implications of this? YearBEG BALPMTINTPRIN END BAL 1$1,000$402$100$302$698 269840270332366 3 402373660 TOTAL1,206.34206.341,000-

56 2-56 Illustrating an amortized payment: Where does the money go? Constant payments. Declining interest payments. Declining balance. $ 0123 402.11 Interest 302.11 Principal Payments


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