Enter the data you expect for your direct marketing campaign in the cells below. The Calculator returns the breakeven percentage, as well as the inquiries or leads necessary to achieve your desired CPI/CPL (Cost per Inquiry / Cost per Lead). If you do not have a CPI/CPL goal, you can experiment by entering different numbers to see how they affect your CPI/CPL results. Place the arrow in the cell to change the values. A "up down" slider will appear. You can use this slider to change the values up and down. Or you can double click in the cell and the value will be surrounded by a box, enter the number you want to use in the box