Hello!

The dollar sign ($) is used in the VLOOKUP function to create an absolute reference to a cell or range of cells.

When you use a cell reference in a formula without the dollar sign, it is called a relative reference. This means that when you copy the formula to another cell, the reference will change based on its new location.

However, when you add a dollar sign before the column letter or row number, it creates an absolute reference. This means that the reference will not change when you copy the formula to another cell.

In the VLOOKUP function, the dollar sign is often used to create an absolute reference to the lookup value. This ensures that the lookup value remains the same when the formula is copied to other cells.

For example, if you have a lookup value in cell A1 and you want to use it in a VLOOKUP formula, you would use $A$1 to create an absolute reference. This ensures that the formula always looks for the value in cell A1, regardless of where the formula is copied.

1. Use the dollar sign to create an absolute reference in a formula.
2. Without the dollar sign, a reference is relative and will change when the formula is copied.
3. In VLOOKUP, use the dollar sign to create an absolute reference to the lookup value.
4. For example, use $A$1 to ensure that the formula always looks for the value in cell A1.

I hope that helps!