Absorption and Variable Costing Comparisons: Sales Exceed Production Required a. Prepare 2016 and 2017 functional income statements using absorption costing. Use a negative sign only to indicate a net loss for income. Otherwise, do not use negative signs with your answers. b. Prepare 2016 and 2017 contribution income statements using variable costing. Use a negative sign only to indicate a net loss for income. Otherwise, do not use negative signs with your answers. Absorption and Variable Costing Comparisons: Sales Exceed Production Required a. Prepare 2016 and 2017 functional income statements using absorption costing. Use a negative sign only to indicate a net loss for income. Otherwise, do not use negative signs with your answers. b. Prepare 2016 and 2017 contribution income statements using variable costing. Use a negative sign only to indicate a net loss for income. Otherwise, do not use negative signs with your answers