please show process of calculations!

Problem 11-20 Project Analysis (LO1, 2] McGilla Golf has decided to sell a new line of golf clubs. The clubs will sell for $780 per set and have a variable cost of $340 per set. The company has spent $170,000 for a marketing study that determined the company will sell 62,000 sets per year for seven years. The marketing study also determined that the company will lose sales of 10,400 sets of its high-priced clubs. The high-priced clubs sell at $1,150 and have variable costs of $610. The company will also increase sales of its cheap clubs by 12,400 sets. The cheap clubs sell for $370 and have variable costs of $160 per set. The fixed costs each year will be $9,900,000. The company has also spent $1,200,000 on research and development for the new clubs. The plant and equipment required will cost $37,500,000 and will be depreciated on a straight-line basis. The new clubs will also require an increase in net working capital of $1,900,000 that will be returned at the end of the project. The tax rate is 22 percent, and the cost of capital is 10 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.) years a. Payback period b. NPV c. IRR %