Ivanhoe Comparyy has three product lines in its retall stores: books, videos, and music. The allocated foced costs are based on units sold and are unavoidable. Demand of individual products is not affected by changes in other product lines. Results of the fourth quarter are presented below: Prepare an incremental analysis of the effect ot dropping the Video product line (Enter negative amounts uning either a nesotive sign preceding the number es -45 or parentheses eg (45)