president, is presented with the following condensed comparative income statement: For those boxes in which you must enter subtracted or negative numbers use a minus sign. 2. The net income as a percent of sales has . All the costs and expenses, other than selling expenses, have maintained their approximate cost as a percent of sales relationship between 20Y1 and 20Y2. Selling expenses as a percent of sales, however, have . Apparently, the new advertising campaign been successful. The increased expense of sales have