All help is much apprecaited

Perform a "product-by-value" analysis on products A, B, C, D, and E. The list of products in descending order of their individual dollar contribution to the firm: The list of products in descending order of their total dollar contribution to the firm: Based on the "product-by-value" analysis, which products are the 3 lowest in total dollar contribution and, therefore, possible candidates for replacement? Products should be investigated for replacement