Product Profitability Analysis information is available for the two products: In addition, the following sales unit volume information for the period is as follows: a. Prepare a contribution margin by product report. Compute the contribution margin ratio for each product as a whole percent. Galaxy Sports Inc. Contribution Margin by Product a. Prepare a contribution margin by product report. Compute the contribution margin ratio for each product as a whole percent. Galaxy Sports Inc. Contribution Margin by Product