This article describes the formula syntax and usage of the DOLLAR function in Microsoft Excel.
Description
The function described in this Help topic converts a number to text format and applies a currency symbol. The name of the function (and the symbol that it applies) depends upon your language settings.
This function converts a number to text using currency format, with the decimals rounded to the specified place. The format used is $#,##0.00_);($#,##0.00).
Syntax
DOLLAR(number, [decimals])
The DOLLAR function syntax has the following arguments:

Number Required. A number, a reference to a cell containing a number, or a formula that evaluates to a number.

Decimals Optional. The number of digits to the right of the decimal point. If decimals is negative, number is rounded to the left of the decimal point. If you omit decimals, it is assumed to be 2.
Remark
The difference between formatting a cell with a ribbon command and using the DOLLAR function is that DOLLAR converts its result to text. A number formatted with the Format Cells dialog box is still a number. You can continue to use the results generated by DOLLAR in other formulas, because Excel converts numbers entered as text to numbers when it calculates.
Example
Copy the example data in the following table, and paste it in cell A1 of a new Excel worksheet. For formulas to show results, select them, press F2, and then press Enter. If you need to, you can adjust the column widths to see all the data.