Swifty Parties sells supplies for celebrations. One item that sells particularly well is the multi-purpose graduation hat-it doubles as a hat and as a serving tray-genius! Swifty Parties' manager pulled some of last year's numbers to get an idea of what this year's performance might look like, as follows. Swifty Parties did not have any fixed product costs last year, as it is a merchandiser. Prepare last year's income statement for Swifty Parties' graduation-hat product line in good form using the contribution margin ncome statement format; identify each cost item separately