You can use the CONCATENATE function to add the $ sign with the values in the cell by following the below steps:

1. First, go to the cell and write the “Concatenate” formula.
2. In the formula, as shown in the below image, after the open parentheses, enter the dollar sign “$” and enter a comma, then select the cell reference (B2) where you have the value, and then close the parentheses and press enter.