Prepare a contribution margin income statement budget for a month using the data given in the facts and your assumptions mat you listed in Requirement 1. Provide a separate line for each variable cost and for each fixed cost (i.e., do not simply lump all of your costs together as one line containing variable costs.) Prepare a contribution margin income statement budget for a month using the data given in the facts and your assumptions mat you listed in Requirement 1. Provide a separate line for each variable cost and for each fixed cost (i.e., do not simply lump all of your costs together as one line containing variable costs.)