Tutorial Week 5

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University of Wollongong *

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111

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Finance

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Jan 9, 2024

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docx

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Tutorial Week 5 3.1 Explain the phrase ‘a dollar today is worth more than a dollar tomorrow’. The concept of the time value of money The money today can be invested and potentially grow into a larger amount in the future. The potential to earn a return on investment. 3.3 Differentiate future value from present value. Value of cash flows FV is the value of an investment after it earns interest for one or more periods. PV is the current value of future cash flows discounted at the appropriate discount rate. 3.6 Explain how compound interest differs from simple interest. Compound interest can be earned both on the original principal amount and on interest previously earned Simple interest can be earned on the original principal amount only. 3.7 If you were given a choice of investing in an account that paid quarterly interest and one that paid monthly interest, which one should you choose and why? Paid monthly. Assuming the quoted annual interest rate is the same, the choice would be an account paying monthly interest as the more frequent interest payments are compounded. The more interest on interest is added, and larger the future value. If there is $10000 in the bank and the interest is 5% and 10 years later: Quarterly: FV = $16,436.19 Monthly: FV = $16,470.09 Therefore, paid monthly is better.
3.9 You are planning to take a mid-year trip to Bali in your last year of university. The trip is exactly 2 years away, but you want to be prepared and have enough money when the time comes. Explain how you would determine the amount of money you will have to save in order to pay for the trip. Calculating the expected cost of the trip Calculating the future value of the cost. 3.3 Future value: Your aunt is planning to invest in a bank deposit that will pay 7 per cent interest compounding semi-annually. If she has $8000 to invest, how much will she have at the end of 4 years? FV = 8000(1+0.07/2) ^2*4 = $10534.47 3.6 Future value: Your birthday is coming up and instead of any presents, your parents promised to give you $3000 in cash. Since you have a part-time job and, thus, don’t need the cash immediately, you decide to invest the money in a bank term deposit that pays 8 per cent compounding quarterly for the next 2 years. How much money can you expect to gain in this period of time? FV = 3000(1+0.08/4) ^4*2 = $3514.98 3514.98 – 3000 = $514.98 3.11 Present value: Your brother has asked you for a loan and has promised to pay back $8700 at the end of 3 years. If you normally invest to earn 7 per cent per annum, how much will you be willing to lend to your brother? PV = 8700/ (1+0.07)^3 = $7101.79 3.15 Interest rate: You are in desperate need of cash and turn to your uncle, who has offered to lend you some money. You decide to borrow $1300 and agree to pay back $1500 in 2 years. Alternatively, you could borrow from your bank which charges 6.5 per cent interest per annum. Should you go with your uncle or the bank? Uncle: i = (1500/1300)^1/2 – 1 = 0.0741723… = 7.417 % Bank: FV = 1300 * (1+0.065)^2 = 1474.49 Therefore, borrowing from the bank is a better choice.
3.20 Multiple compounding periods: Find the future value of an investment of $2500 made today for the following rates and periods: e: 8 per cent compounded continuously for 2 years. Continuous compounding’s formula is FV∞ = PV * e^(i*n) e= 2.71828 FV = 2500 * 2.71828 ^ (0.08 * 2) = 2933.78 3.28 Multiple compounding periods: Kylie wants to invest some money so she can collect $5500 at the end of 3 years. Which investment should she make given the following choices? a. 4.2 per cent compounded daily b. 4.9 per cent compounded monthly c. 5.2 per cent compounded quarterly d. 5.4 per cent compounded annually FV(a) = 6,238.51 FV(b) = 6,369.04 FV(c) = 6,422.08 FV(d) = 6,439.98 Therefore, option d is a good choice for investment. We can compare on the basis of PV. 3.28 (Using EAR to solve) EAR = (1 + quoted interest rate/ m)^m -1 EAR (a) = 0.0429 EAR (b) = 0.0501 EAR (c) = 0.0530 EAR (d) = 0.0540 Therefore, it is the same option (d) as the previous method.
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3.29 You have $2500 you want to invest in your classmate’s start-up business. You believe the business idea to be great and hope to get $3700 back at the end of 3 years. If all goes according to plan, what will be your return on investment? 3700 – 2500 = 1200 I will receive $1200 gain from my investment of $2500 Therefore, the return on investment will be 48%. I = (3700/2500) ^1/3 -1 = 0.1396.. = 13.96% 4.1 Identify the steps involved in calculating the future value when you have multiple cash flows. 1. Draw a timeline to make sure that each cash flow is placed in the correct period. 2. Calculate the future value of each cash flow for its period. 3. Add up the future values. 4.8 When will the annual percentage rate (APR) be the same as the effective annual rate (EAR)? The interest is compounded once a year. 4.3 Future value with multiple cash flows: You are in first year at university and are planning a trip to Canada when you graduate at the end of 4 years. You plan to save the following amounts annually, starting today: $781, $627, $895 and $920. If the account pays 6.03 per cent annually, how much will you have at the end of 4 years? FV 4 = 781(1+0.0603) ^4+627(1+0.0603) ^3+895(1+0.0603) ^2+920(1+0.0603) = 987.11 + 747.40 + 1006.19 + 975.48 = 3716.18 will be gained.
4.4 Present value with multiple cash flows: Peter Garcia has just purchased some equipment for his landscaping business. He plans to pay the following amounts at the end of each of the next 5 years: $ 11,009, $ 14,501, $ 11,298, $8,704 and $ 12,973. If he uses a discount rate of 11.534 per cent, what is the cost of the equipment he purchased today? PV 5 = 11009/ (1+0.11534)^1 + 14501/(1+0.11534)^2 + 11298/(1+0.11534)^3 + 8704/(1+0.11534)^4 + 12973/(1+11534)^5 = 9870.53 + 11656.91 + 8142.91 + 5624.58 + 7516.30 = 42811.23 4.6 Present value with multiple cash flows: Biosynthetics Pty Ltd expects the following cash flow stream over the next 5 years. The company discounts all cash flows at a 17.9 per cent discount rate. What is the present value of this cash flow stream? 1 2 3 4 5 −$1 035 546 −$1 094 678 $293 427 $822 105 $1 873 588 -878 325.70 -787 514.90 179 043.54 425 473.06 822 441.60 PV = -238,882.40 4.29 Effective annual interest rate: Which of the following investments has the highest effective annual interest rate (EAR)? a. A bank term deposit that pays 8.25 per cent compounded quarterly. b. A bank term deposit that pays 8.25 per cent compounded monthly. c. A bank term deposit that pays 8.45 per cent compounded annually. d. A bank term deposit that pays 8.25 per cent compounded semi-annually. e. A bank term deposit that pays 8 per cent compounded daily (on a 365-day basis). Following: EAR = (1+quoted interest rate/m) ^m - 1 a: EAR = 8.51% b: EAR = 8.57% c: EAR = 8.45% d: EAR = 8.42 e: EAR = 8.33 Therefore, b is the highest effective annual interest rate.