highlight the cells that contain your COGS/SALES ratios and your cell references to Debt and Excess cash. the cells to the right of your COGS/SALES ratios and below your cell reference to Debt and Excess cash are the cells to be filled in and should also be highlighted. choose the menu and then the menu item. In the box, enter the cell where your COGS/SALES assumption is B4. the computer will fill in the table.