You can create names that are defined by constants and formulas instead of by cell references.
You can use absolute and relative references, numbers, text, formulas, and functions as name
definitions.
For example, if you often use the value 8.3 percent to calculate sales tax, you can
choose Insert, Name, Define, type the name Tax in the Names In Workbook box, and then
type 8.3% (or .083) in the Refers To box. Then you can use the name Tax in a formula, such
as =Price+(Price*Tax), to calculate the cost of items with 8.3 percent sales tax.
Note that
named constants and formulas do not appear in the Name box in the formula bar, but they
do appear in the Define Name dialog box.
You can also enter a formula in the Refers To box. For example, you might define the name
Price with a formula, such as =Sheet1!A1*190%. If you define this named formula while cell
B1 is selected, you can then type =Price in cell B1, and the defined formula takes care of the
calculation for you. Because the reference in the named formula is relative, you could then
type =Price into any cell in your workbook to calculate a price using the value in the cell
directly to the left. If you enter a formula in the Refers To box that refers to a cell or range in
a worksheet, Excel updates the formula whenever the value in the cell changes.
Using Relative References in Named Formulas
When you are creating a named formula that contains relative references, such as
=Sheet1!B22+1.2%, Excel interprets the position of the cells referenced in the Refers To
box as relative to the cell that is active when you define the name. Later, when you use
such a name in a formula, the named formula uses whatever cell corresponds to the relative
reference. For example, if cell B21 was the active cell when you defined the name Tax
as =Sheet1!B22+1.2%, the name Tax always refers to the cell one row below the cell in
which the formula is currently located.