3. [15 points] Brianna is concerned about fluctuations in the gross revenue growth rate and the tax rate. Create a two-input Data Table for NPV, with the following ranges: gross revenue growth rate between 6% and 12% in 1% increments, and the tax rate between 28% and 34% in 1% increments. After consulting with economists, market analysts, employees in her own company, and employees from other companies, Brianna is confident that revenues for these speakers in the first year would be around $6 million. She must also figure a small percentage of speakers will be damaged in transit or returned by dissatisfied customers. These returns and allowances (R\&As) are usually calculated as 2% of gross revenue; net revenue is the gross minus the R\&As. Brianna believes the first year labor costs will be $915,100; materials costs will be $915,350; and overhead costs will be $1,536,120. Additionally, selling and administrative (S\&A) costs need to be included. These are harder to estimate, but the industry standard has been 18% of net revenue. Finally, the tax rate for profits is 30%, but if the company is operating at loss, then they pay no taxes. Brianna would like to create a spreadsheet model for the next four years of this new product. Her model must account for year-over-year increases in gross revenue, labor costs, material costs, and overhead costs. Again, these are difficult to estimate, but she thinks gross revenue will increase by 9% per year, labor costs by 4% per year, material costs by 6% per year, and overhead costs by 3% per year. However, she assumes the R&A,S&A, and tax rates will remain unchanged over the course of four years