Question: I create a weekly report on sales opportunities and am being asked to report on changes (e.g. change in deal size, new deals, closed deals), specifically looking at the biggest changes. 

Any tips on how to accomplish this?

Answer: 
Replace `\.` by `[.,]`. You'll get the following regex

```
^[0-9]{1,5}([.,][0-9]{0,2})?$

```
Just add the comma and dot inside the character class to handle both `[]`

```
^[0-9]{1,5}([.,][0-9]{0,2})?$
              ^

```

But I am not sure why you are checking `{0,2}` at the end? Which means only it will accept `1111.` as a valid input. So better make it `{1,2}`