RE: Formula's
Hi Mandy,
The dollar sign represents an absolute fixed column, row or cell.
If you copy or fill formulas to other cells, Excel usually updates them to match the appropriate Row or Column.
For example, if I enter the formula =sum(A1+A2) in cell A3, and then copy and paste that formula into cell B3, Excel will assume I want the formula changed to =sum(B1+B2).
However, if I enter =sum($A$1+$A$2) and copy/paste to B3, it won't change an element with dollar sign in front, and keep the formula the same.
It's also handy if you have a cell with a very specific value (eg. current exchange rate for GBP to USD). Say you have it in cell A1. At least you know that throughout your document, you can put $A$1 and it will ALWAYS reference that cell, no matter where you move your formula.
When editing a cell, you can press F4 to toggle between the variations of the relative, absolute and mixed styles of referencing.
Excel Help describes the difference between the two as:
- Absolute cell reference: In a formula, the exact address of a cell, regardless of the position of the cell that contains the formula. An absolute cell reference takes the form $A$1.
- Relative reference: In a formula, the address of a cell based on the relative position of the cell that contains the formula and the cell referred to. If you copy the formula, the reference automatically adjusts. A relative reference takes the form A1.
Hope this helps.
Regards, Rich
