X Company is considering launching a new product. The company believes unit sales of this product will be 8,100 in each of the next 4 years, and that the contribution margin will be $6.10 per unit. Additional fixed costs will be $16,352. Equipment costing $120,000 will have to be purchased; the equipment will have no salvage value at the end of 4 years. What is the internal rate of return if the new product is launched?