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# Present Value Calculations Discount Rate

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Suppose you just inherited a gold mine. This gold mine is believed to have three years worth of gold deposit. Here is how much income this gold mine is projected to bring you each year for the next three years:
Year 1: \$42,000,000
Year 2: \$62,000,000
Year 3: \$99,000,000
Compute the present value of this stream of income at a discount rate of 8%. Remember, you are calculating the present value for a whole stream of income, i.e. the total value of receiving all three payments (how much you would pay right now to receive these three payments in the future). Your answer should be one number - the present value for this oil well at a 8% discount rate but you have to show how you got to this number.
Now compute the present value of the income stream from the gold mine at a discount rate of 6%, and at a discount rate of 4%. Compare the present values of the income stream under the three discount rates.

#### Solution Preview

Suppose you just inherited a gold mine.  This gold mine is believed to have three years worth of gold deposit.  Here is how much income this gold mine is projected to bring you each year for the next three years:
Year 1: \$42,000,000
Year 2: \$62,000,000
Year 3: \$99,000,000

Compute the present value of this stream of income at a discount rate of  8%.  Remember, you are calculating the present value for a whole stream of income, i.e. the total value of receiving all three payments (how much you would pay right now to receive these three payments in the future). Your answer should be one number - the present value for this ...

#### Solution Summary

Computes the present value of a stream of income and compares the present values of the income stream under three discount rates.

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