For a new product, sales volume in the first year is estimated to be 80,000 units and is projected to grow at a rate of 4% per year. The selling price is $12 and will increase by $0.50 each year. Per-unit variable costs are $3, and annual fixed costs are $400,000. Per-unit costs are expected to increase 5% per year. Fixed costs are expected to increase 8% per year. Develop a spreadsheet model in worksheet to calculate the net present value of profit over a 3-year period, assuming a 4% discount rate. Use good spreadsheet- engineering principles, such as separating data from calculation, breaking complex calculation into smaller parts, etc. According to your calculation, the NPV of total profits is