Introduction to Valuation: The Time Value of Money - More about Present and Future Values

3 important questions on Introduction to Valuation: The Time Value of Money - More about Present and Future Values

Explain the difference between Present and Future value:

What we called the present value factor is just the reciprocal of (that is, 1 divided by) the future value factor:

In fact, the easy way to calculate a present value factor on many calculators is to first calculate the future value factor and then press the ‘1/x’ key to flip it over.

What is the Basic present value equation?

There are only four parts to this equation:

the present value (PV),
the future value (FVt ),
the discount rate (r),
investment (t).

Given any three of these, we can always find the fourth.

Name 2 tricky things about the excell calculation:

First, the spreadsheet requires that the rate be entered as a decimal.
Second, you have to put a negative sign on either the present value or the future value to solve for the rate or the number of periods. For the same reason, if you solve for a present value, the answer will have a negative sign unless you input a negative future value. The same is true when you compute a future value.

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