Aria acoustics, inc. (aai), projects unit sales for a new seven-octave voice emulation implant as follows: year unit sales1 73,0002 86,0003 105,0004 97,0005 67,000production of the implants will require $1,500,000 in net working capital to start and additional net working capital investments each year equal to 15 percent of the projected sales increase for the following year. total fixed costs are $3,200,000 per year, variable production costs are $255 per unit, and the units are priced at $375 each. the equipment needed to begin production has an installed cost of $16,500,000. because the implants are intended for professional singers, this equipment is considered industrial machinery and thus qualifies as seven-year macrs property (macrs schedule). in five years, this equipment can be sold for about 20 percent of its acquisition cost. the tax rate is 21 percent tax and the required return is 18 percent. a. what is the npv of the project? (do not round intermediate calculations and round your answer to 2 decimal places, e. g., 32.16.)b. what is the irr? (do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e. g., 32.16.)