McGilla Golf has decided to sell a new line of golf clubs. The clubs will sell for $810 per set and have a variable cost of $370 per set. The company has spent $230,000 for a marketing study that determined the company will sell 67,300 sets per year for seven years. The marketing study also determined that the company will lose sales of 11,600 sets of its high-priced clubs. The high-priced clubs sell at $1,180 and have variable costs of $640. The company will also increase sales of its cheap clubs by 13,600 sets. The cheap clubs sell for $400 and have variable costs of $190 per set. The fixed costs each year will be $10,200,000. The company has also spent $1,800,000 on research and development for the new clubs. The plant and equipment required will cost $38,100,000 and will be depreciated on a straight-line basis. The new clubs will also require an increase in net working capital of $2,500,000 that will be returned at the end of the project. The tax rate is 23 percent, and the cost of capital is 11 percent. a. Calculate the payback period. (Do not round intermediate calculations and round your answer to 3 decimal places, e.g., 32.161.) b. Calculate the NPV. (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. Calculate the IRR. (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)