McSweeney Golf has decided to sell a new line of golf clubs. The clubs will sell for $835 per set and have a variable cost of $375 per set. The company has spent $150,000 on a marketing study that determined the company will sell 55,000 sets per year for seven years. The marketing study also determined that the company would lose sales of 11,000 sets of its high-priced clubs. The high-priced clubs sell at $1,355 and have variable costs of $735 per set. On the brighter side, as a result of the introduction of the new clubs, the company will increase sales of its cheap clubs by 12,000. The cheap clubs sell at $415 and have variable costs of $200 per set.

Annual fixed costs are estimated to be $9.45 million. The company has also spent $1 million on research and development of the new clubs. The plant and equipment required to manufacture the new clubs will cost $40.5 million and will be depreciated on a straight-line basis to an estimated salvage value of $1.5 million at the end of the project's life. Production of the new clubs will also require an increase in net working capital of $2.85 million at inception and a further $2.0 million at the end of the 5th year. Fifty-percent of all working capital will be returned at the end of the project. The company's tax rate is 25%, and its cost of capital is 11%.

Required

(a) Calculate the payback period, the NPV, and the IRR.

(b) You feel the values described above are accurate to within only 10 percent. What are the best-case and worst-case NPVs? (Hint: The selling price and variable costs for the two existing sets of clubs, i.e., the high-priced and cheap clubs are known with certainty; only the sales gained or lost are uncertain, i.e., may fluctuate within 10 percent.)