Question - In my opinion, a tanning salon would be a natural addition to our spa and very popular with our customers," said Stacey Winder, manager of the Lifeline Spa. "Our figures show that we could remodel the building next door to our spa and install all of the necessary equipment for $330,000. I have contacted tanning salons in other areas, and I am told that the tanning beds will be usable for about nine years. I am also told that a four-bed salon such as we are planning would generate a cash inflow of about $80,000 per year after all expenses.

It does sound very appealing," replied Kevin Leblanc, the spa's accountant. "Let me push the numbers around a bit and see what kind of a return the salon would generate." (Ignore income taxes.)

Requirement 1: Compute the internal rate of return promised by the tanning salon. (Round your answer to the nearest whole percent.)

Requirement 2: Assume that Ms. Winder will not open the salon unless it promises a return of at least 14%. Compute the amount of annual cash inflow that would provide this return on the $330,000 investment. (Round your answer to the nearest dollar amount.)

Requirement 3: Although nine years is the average life of tanning salon equipment, Ms. Winder has found that this life can vary substantially. Compute the internal rate of return if the life were (a) 6 years and (b) 12 years rather than 9 years. (Round your answer to the nearest whole percent.)

Requirement 4: Ms. Winder has also found that although $80,000 is an average cash inflow from a four-bed salon, some salons vary as much as 20% from this figure.

(a) Assume that the actual cash inflow each year is 20% less than estimated. Re-compute the internal rate of return. (Round your answer to the nearest whole percent.)

(b) Assume that the actual cash inflow each year is 20% greater than estimated. Recompute the internal rate of return. (Round your answer to the nearest whole percent.)

Requirement 5: Assume that the $330,000 investment is made and that the salon is opened as planned. Because of concerns about the effects of excessive tanning, however, the salon is not able to attract as many customers as planned. Cash inflows are only $50,000 per year, and after eight years the salon equipment is sold to a competitor for $135,440. Compute the internal rate of return to the nearest whole percent earned on the investment over the eight-year period. (Hint: A useful way to proceed is to find the discount rate that will cause the net present value to be equal to, or near, zero.) (Round your answer to the nearest whole percent.)