Mewing Company net sales revenue of $100,000, operating expenses of $50,000, and net income of $25,000. What is the percentage that will be shown for operating expenses in the vertical (common size) income statement

Four key marketing decision variables are price (p), advertising (a), transportation (t), and product quality (q). consumer demand (d) is influenced by these variables. the simplest model for describing demand in terms of these variables is: d = k – pp + aa + tt + qq where k, p, a, t, and q are constants. discuss the assumptions of this model. specifically, how does each variable affect demand? how do the variables influence each other? what limitations might this model have? how can it be improved?