Exercise 4.2 Following the format of the spreadsheet in Figure 4-3, develop a spreadsheet to forecast Fitter's sales for July through December. Calculate the base projection using the previous year's values (shown in Figure 4-4), and factor in the 3 percent estimated growth rate. Assume that the special marketing promotion last year resulted in an increase in sales of 200 cases for July, and that a special marketing promotion this year will result in an increase in sales for July of 400 cases