I am trying to a prepend a `$` at the beginning of my result using SQL. What is the best way to go about it with it having the same functionality as this line of code has :

```
CAST(AVG(e.[myAmount]) AS DECIMAL(10,2)) AS 'Total Amount'

```

I know I can do convert it to `VARCHAR` and add it to beginning of statement, but it then gets rid of my average functionality.