2 The Wine Depot is trying to better understand the behavior of their selling expenses. They have accumulated selling expenses over the last 6 months and believe units sold are a good predictor of expense behavior. Selling expenses include commissions on sales and advertising. Use the file ch708 to complete a cost prediction worksheet. Save the file as ch7-08_student_name (replacing student_name with your name). The worksheet should do the following: a. Calculate variable cost per unit sold, fixed costs, and a prediction of selling expense when 19,000 units are sold using the Hi-Lo method. b. Calculate variable cost per unit sold, fixed costs, and a preditition of selling expense when 19,000 units are sold using the Least Squares/ Regression method. c. Display a chart of selling expense/units sold with a trend line. (Be sure to modify each axis so your scatter diagram is better displayed as you did earlier in this chapter.)