Hi @sajinshaji ,
Couple things:
- Please check your number format in settings. I am seeing a comma (thousands separator) to the left without a number in front of it which looks to me like a custom format as I have not seen this.
- You can check your personalization options (formats tab) within the "gear" icon in top navigation or it can be set globally within System Options as well if you have admin capabilities.

2. As far as negative values, if not from the format then check how the field is being set from the application.
Hope this helps. Please accept if answers your question or Like if helps in any way.
Thanks,
Drew