What's the correct regex for a String starting with $ char as the first argument (i.e. the string to replace) to Java's replaceAll method in the String class? I can't get the syntax right.
Example

```
String s = "SUMIF($C$6:$C$475,\"   India - Hyd\",K$6:K$475)";
System.out.println(s.replaceAll("$475", "$44"));

```