What values do I enter for N, PMT, i/y, FV and PV on a finance calculator to solve for the question below.

What is the value today of receiving $1,644.00 per year forever? Assume the first payment is made 8.00 years from today and the discount rate is 11.00%.

1 answer

To find the present value of a perpetuity where the first payment is received in the future, we need to break it down into two steps:

  1. Calculate the present value of the perpetuity as of the first payment date
  2. Calculate the present value of that amount to today's date

Step 1: Calculate the Present Value of the Perpetuity

A perpetuity is valued using the formula:

\[ PV_{t} = \frac{PMT}{i} \]

Where:

  • \( PMT \) = payment per period ($1,644.00)
  • \( i \) = interest rate (11% or 0.11)

Using this, we can calculate the present value at the time the first payment is received, which is 8 years from now.

\[ PV_{t} = \frac{1644}{0.11} = 14945.45 \]

Here, \( PV_{t} \) is the value of the perpetuity at Year 8.

Step 2: Calculate the Present Value Today

Now, we need to find the present value of \( PV_{t} \) as of today.

The formula to calculate the present value from a future value is:

\[ PV = \frac{FV}{(1 + r)^n} \]

Where:

  • \( FV = 14,945.45 \) (the perpetuity value we just calculated)
  • \( r = 0.11 \) (the discount rate)
  • \( n = 8 \) (the number of years until the first payment is received)

So, we calculate:

\[ PV = \frac{14945.45}{(1 + 0.11)^8} \]

Calculating \( (1 + 0.11)^8 \):

\[ (1.11)^8 \approx 2.3996 \]

Now plug this into the present value formula:

\[ PV = \frac{14945.45}{2.3996} \approx 6226.55 \]

Thus, the present value today of receiving $1,644.00 per year forever starting 8 years from now, assuming a discount rate of 11%, is approximately $6,226.55.

Inputting Values on a Finance Calculator:

For the finance calculator, enter the following values:

For the first calculation (Step 1):

  • \( PMT = 1644 \)
  • \( i/y = 11 \) (which reflects a 11% interest rate)
  • ( N = \text{not needed, since it's a perpetuity)**
  • \( FV = 0 \) (because we are calculating the present value)
  • \( PV = \text{what you would solve for as } 14945.45 \text{ (after entering percent rate)} \)

For the second calculation (Step 2):

  • \( PMT = 0 \) (no payments to be received)
  • \( i/y = 11 \)
  • \( N = 8 \)
  • \( FV = 14945.45 \) (the calculated perpetuity value)
  • \( PV = \text{what you would solve for as approximately } 6226.55 \)

With these inputs, you can find both the value of the perpetuity starting in the future and its equivalent present value as of today.