Capital Expenditure

Time Value of Money

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Priya Kaur

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Christian Bien

Learning Objectives

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What is Time Value of Money?
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If someone offered you $10,000 today or $10,000 in 2 years time, which one would you choose? Of course most people would choose the $10,000 today, but why? 


The simple answer is that the value of $10,000 today does not have the same value of $10,000 in 2 years time. 


For example, if a bank account offered an interest rate of 2%, if you invested that $10,000 in two years you would have $10,404. (Year 1 = 1.02 * $10,000 = $10,200. Year 2: 1.02 * $10,200 = $10,404.) Time Value is the same concept, just in reverse - instead of asking what is the value of an investment two years down the track, it is how much is it worth now if I receive it two years later?

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What is Future Value? - Example Investing $10k
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Future Value is simply the monetary value in a future point in time. 

For example, if we invest $10,000 at 2% per year, interest compounded annually, the future value would be $10,404. Year 1 = 1.02 * $10,000 = $10,200. Year 2: 1.02 * $10,200 = $10,404.

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What is Present Value? - Example Investing $10k
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Time value of money simply measures the reverse of the previous example. If we receive $10,000 in two years time, and the current interest rate is 2%, the value of the money is divided to present day. 


Year 2 = $10,000 

Year 1 = $10,000 / 1.02 = $9,803.92 

Year 0 (Present Day) = $9,803.92 / 1.02 = $9,611.69

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What is the Discount Rate?
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The discount rate refers to the percentage of which we reduce an amount by to achieve a present day valuation. The discount rate is subjective and can consist of a variety of factors, such as risk profile of the investment, inflation or current interest rates. 


For questions in your exam, your discount rate will always be provided.

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How Do I Use the Annuity Table in the Specification Booklet?
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The annuity table is provided by SCSA to provide a simple way to discount. The top table is for finding the discounted value where this is only one cash inflow. Remember the example above with the 2% annual rate over 2 years. 


We can see in the top table, under 2% for 2 periods, the result is 0.9612. If we multiply $10,000 by 0.9612, we achieve the same result as above. = $10,000 * 0.9612 = $9,612. The bottom table is for multiple cash inflows, such as, if we received $10,000 per year. 

The bottom tables are just accumulated tables of the above. 


Image of Specification Booklet Provided SCSA WA.

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Introduction to Capital Expenditure
Simple Payback Period
Complex Payback Period
Time Value of Money
NPV with Annuity Cash Flows
NPV with Differing Cash Flows
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