Wrong Storage Space Data

Hello Experts

When I go to Setting / General / Storage, the space occupied in DOCUMENTS is showing as 27.45 GB but in reality but in file browser sub section I can see less then 1GB files are in total can be seen.

I would like to know why 27.45 GB of space is being used instead of 1GB at max

I have check the files with file size as well and there are no big files occupied in my systems. The max is upto 1GB only

Please enlighten me on the above query

Thanks for your help