Percentage of Sales Method The following are the percentage of sales figures other department stores in the country use to determine advertising budgets. Calculate the mean or average for the industry: 5%, 7.5%, 4%, 11%, 9.75%, 10%, and 8% The average or mean for the industry is Based on the industry mean/average, and using the forecasted sales for Smith's in the affordable budget method from above, what is the amount Smith's should use for its advertising budget