23. Pat the accountant has put together the income statement below for Dewey, Cheatum, & Howe, purveyors of wooden barrels, for the past month. Dewey, Cheatum, & Howe sell each barrel for $500 each. They pay a commission of $8 for each barrel sold plus fixed expenses. They also pay the barrel distributor $25 for each barrel sold. Lastly, The variable administrative expenses are 10% of sales plus fixed expenses. What is the contribution margin for Dewey, Cheatum, & Howe?